We are currently using the wpmudev custom sidebar plugin on our website https://www.bodycote.com/

The plugin has been working fine for the last 2 years we run it with WPML and a number of other plugins and have had no issues at all.

However recently when we upgraded the wordpress core to 5.23 we have been unable to edit/amend any of the custom widgets that we had set up on the website.

All of the current sidebars still appear on the front end of the website and work in the foreign languages on the website but I cannot amend them. My concern is that the functionality for editing the content in Tiny MCE is not working for some reason or possibly for a nother reason.

Its not possible for me to switch off all of the other plugins to see if one of them is cancelling out the custom sidebars plugin on the live environment as this is a FTSE 150 website which cannot be unavailable.

Is there any other way to find out what is causing the issue?

Many thanks for you help

Regards

Gerard

this is what the console tells me:

JQMIGRATE: Migrate is installed, version 1.4.1 widgets.php:205 Uncaught TypeError: Cannot read property ‘init’ of undefined at widgets.php:205 widgets.php:209 Uncaught TypeError: Cannot read property ‘modelConstructors’ of undefined at widgets.php:209 widgets.php:217 Uncaught TypeError: Cannot read property ‘modelConstructors’ of undefined at widgets.php:217 widgets.php:225 Uncaught TypeError: Cannot read property ‘modelConstructors’ of undefined at widgets.php:225 widgets.php:233 Uncaught TypeError: Cannot read property ‘modelConstructors’ of undefined at widgets.php:233 widgets.php:247 Uncaught TypeError: Cannot read property ‘idBases’ of undefined at widgets.php:247 widgets.php:253 Uncaught TypeError: Cannot read property ‘defaultSettings’ of undefined at widgets.php:253 widgets.php:261 Uncaught TypeError: Cannot read property ‘idBases’ of undefined at widgets.php:261 widgets.php:87210 Uncaught ReferenceError: acf is not defined at widgets.php:87210 widgets.php:87217 Uncaught ReferenceError: acf is not defined at widgets.php:87217 at widgets.php:87271 widgets.php:87274 Uncaught ReferenceError: acf is not defined at widgets.php:87274 widgets.php:87304 Uncaught ReferenceError: wpWidgets is not defined at widgets.php:87304 widgets.php:87310 Uncaught SyntaxError: missing ) after argument list widgets.php:87430 Uncaught ReferenceError: tinymce is not defined at widgets.php:87430 wp-langs-en.js?ver=4940-20190515:235 Uncaught ReferenceError: tinyMCE is not defined at wp-langs-en.js?ver=4940-20190515:235 at wp-langs-en.js?ver=4940-20190515:519 widgets.php:87499 Uncaught ReferenceError: tinymce is not defined at Object.load_ext (widgets.php:87499) at widgets.php:87504 acf-input.min.js?ver=5.8.3:4 Uncaught TypeError: Cannot read property ‘autop’ of undefined at acf.Model.onReady (acf-input.min.js?ver=5.8.3:4) at u (acf-input.min.js?ver=5.8.3:1) at Object.i (acf-input.min.js?ver=5.8.3:1) at Object.i.doAction (acf-input.min.js?ver=5.8.3:1) at HTMLDocument. (acf-input.min.js?ver=5.8.3:1) at i (load-scripts.php?c=0…pointer&ver=5.2.3:2) at Object.fireWith [as resolveWith] (load-scripts.php?c=0…pointer&ver=5.2.3:2) at Function.ready (load-scripts.php?c=0…pointer&ver=5.2.3:2) at HTMLDocument.J (load-scripts.php?c=0…pointer&ver=5.2.3:2) wp-auth-check.min.js?ver=5.2.3:1 Uncaught TypeError: Cannot read property ‘hasClass’ of undefined at HTMLDocument. (wp-auth-check.min.js?ver=5.2.3:1) at HTMLDocument.dispatch (load-scripts.php?c=0…pointer&ver=5.2.3:3) at HTMLDocument.r.handle (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object.a.event.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:8) at HTMLDocument. (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Function.each (load-scripts.php?c=0…pointer&ver=5.2.3:2) at a.fn.init.each (load-scripts.php?c=0…pointer&ver=5.2.3:2) at a.fn.init.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object. (heartbeat.min.js?ver=5.2.3:1) wp-auth-check.min.js?ver=5.2.3:1 Uncaught TypeError: Cannot read property ‘hasClass’ of undefined at HTMLDocument. (wp-auth-check.min.js?ver=5.2.3:1) at HTMLDocument.dispatch (load-scripts.php?c=0…pointer&ver=5.2.3:3) at HTMLDocument.r.handle (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object.a.event.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:8) at HTMLDocument. (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Function.each (load-scripts.php?c=0…pointer&ver=5.2.3:2) at a.fn.init.each (load-scripts.php?c=0…pointer&ver=5.2.3:2) at a.fn.init.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object. (heartbeat.min.js?ver=5.2.3:1) wp-auth-check.min.js?ver=5.2.3:1 Uncaught TypeError: Cannot read property ‘hasClass’ of undefined at HTMLDocument. (wp-auth-check.min.js?ver=5.2.3:1) at HTMLDocument.dispatch (load-scripts.php?c=0…pointer&ver=5.2.3:3) at HTMLDocument.r.handle (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object.a.event.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:8) at HTMLDocument. (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Function.each (load-scripts.php?c=0…pointer&ver=5.2.3:2) at a.fn.init.each (load-scripts.php?c=0…pointer&ver=5.2.3:2) at a.fn.init.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object. (heartbeat.min.js?ver=5.2.3:1) wp-auth-check.min.js?ver=5.2.3:1 Uncaught TypeError: Cannot read property ‘hasClass’ of undefined at HTMLDocument. (wp-auth-check.min.js?ver=5.2.3:1) at HTMLDocument.dispatch (load-scripts.php?c=0…pointer&ver=5.2.3:3) at HTMLDocument.r.handle (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object.a.event.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:8) at HTMLDocument. (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Function.each (load-scripts.php?c=0…pointer&ver=5.2.3:2) at a.fn.init.each (load-scripts.php?c=0…pointer&ver=5.2.3:2) at a.fn.init.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object. (heartbeat.min.js?ver=5.2.3:1) wp-auth-check.min.js?ver=5.2.3:1 Uncaught TypeError: Cannot read property ‘hasClass’ of undefined at HTMLDocument. (wp-auth-check.min.js?ver=5.2.3:1) at HTMLDocument.dispatch (load-scripts.php?c=0…pointer&ver=5.2.3:3) at HTMLDocument.r.handle (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object.a.event.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:8) at HTMLDocument. (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Function.each (load-scripts.php?c=0…pointer&ver=5.2.3:2) at a.fn.init.each (load-scripts.php?c=0…pointer&ver=5.2.3:2) at a.fn.init.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object. (heartbeat.min.js?ver=5.2.3:1) wp-auth-check.min.js?ver=5.2.3:1 Uncaught TypeError: Cannot read property ‘hasClass’ of undefined at HTMLDocument. (wp-auth-check.min.js?ver=5.2.3:1) at HTMLDocument.dispatch (load-scripts.php?c=0…pointer&ver=5.2.3:3) at HTMLDocument.r.handle (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object.a.event.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:8) at HTMLDocument. (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Function.each (load-scripts.php?c=0…pointer&ver=5.2.3:2) at a.fn.init.each (load-scripts.php?c=0…pointer&ver=5.2.3:2) at a.fn.init.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object. (heartbeat.min.js?ver=5.2.3:1) wp-auth-check.min.js?ver=5.2.3:1 Uncaught TypeError: Cannot read property ‘hasClass’ of undefined at HTMLDocument. (wp-auth-check.min.js?ver=5.2.3:1) at HTMLDocument.dispatch (load-scripts.php?c=0…pointer&ver=5.2.3:3) at HTMLDocument.r.handle (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object.a.event.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:8) at HTMLDocument. (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Function.each (load-scripts.php?c=0…pointer&ver=5.2.3:2) at a.fn.init.each (load-scripts.php?c=0…pointer&ver=5.2.3:2) at a.fn.init.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object. (heartbeat.min.js?ver=5.2.3:1) wp-auth-check.min.js?ver=5.2.3:1 Uncaught TypeError: Cannot read property ‘hasClass’ of undefined at HTMLDocument. (wp-auth-check.min.js?ver=5.2.3:1) at HTMLDocument.dispatch (load-scripts.php?c=0…pointer&ver=5.2.3:3) at HTMLDocument.r.handle (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object.a.event.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:8) at HTMLDocument. (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Function.each (load-scripts.php?c=0…pointer&ver=5.2.3:2) at a.fn.init.each (load-scripts.php?c=0…pointer&ver=5.2.3:2) at a.fn.init.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object. (heartbeat.min.js?ver=5.2.3:1) wp-auth-check.min.js?ver=5.2.3:1 Uncaught TypeError: Cannot read property ‘hasClass’ of undefined at HTMLDocument. (wp-auth-check.min.js?ver=5.2.3:1) at HTMLDocument.dispatch (load-scripts.php?c=0…pointer&ver=5.2.3:3) at HTMLDocument.r.handle (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object.a.event.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:8) at HTMLDocument. (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Function.each (load-scripts.php?c=0…pointer&ver=5.2.3:2) at a.fn.init.each (load-scripts.php?c=0…pointer&ver=5.2.3:2) at a.fn.init.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object. (heartbeat.min.js?ver=5.2.3:1) wp-auth-check.min.js?ver=5.2.3:1 Uncaught TypeError: Cannot read property ‘hasClass’ of undefined at HTMLDocument. (wp-auth-check.min.js?ver=5.2.3:1) at HTMLDocument.dispatch (load-scripts.php?c=0…pointer&ver=5.2.3:3) at HTMLDocument.r.handle (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object.a.event.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:8) at HTMLDocument. (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Function.each (load-scripts.php?c=0…pointer&ver=5.2.3:2) at a.fn.init.each (load-scripts.php?c=0…pointer&ver=5.2.3:2) at a.fn.init.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object. (heartbeat.min.js?ver=5.2.3:1) wp-auth-check.min.js?ver=5.2.3:1 Uncaught TypeError: Cannot read property ‘hasClass’ of undefined at HTMLDocument. (wp-auth-check.min.js?ver=5.2.3:1) at HTMLDocument.dispatch (load-scripts.php?c=0…pointer&ver=5.2.3:3) at HTMLDocument.r.handle (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object.a.event.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:8) at HTMLDocument. (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Function.each (load-scripts.php?c=0…pointer&ver=5.2.3:2) at a.fn.init.each (load-scripts.php?c=0…pointer&ver=5.2.3:2) at a.fn.init.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object. (heartbeat.min.js?ver=5.2.3:1) wp-auth-check.min.js?ver=5.2.3:1 Uncaught TypeError: Cannot read property ‘hasClass’ of undefined at HTMLDocument. (wp-auth-check.min.js?ver=5.2.3:1) at HTMLDocument.dispatch (load-scripts.php?c=0…pointer&ver=5.2.3:3) at HTMLDocument.r.handle (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object.a.event.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:8) at HTMLDocument. (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Function.each (load-scripts.php?c=0…pointer&ver=5.2.3:2) at a.fn.init.each (load-scripts.php?c=0…pointer&ver=5.2.3:2) at a.fn.init.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object. (heartbeat.min.js?ver=5.2.3:1) wp-auth-check.min.js?ver=5.2.3:1 Uncaught TypeError: Cannot read property ‘hasClass’ of undefined at HTMLDocument. (wp-auth-check.min.js?ver=5.2.3:1) at HTMLDocument.dispatch (load-scripts.php?c=0…pointer&ver=5.2.3:3) at HTMLDocument.r.handle (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object.a.event.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:8) at HTMLDocument. (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Function.each (load-scripts.php?c=0…pointer&ver=5.2.3:2) at a.fn.init.each (load-scripts.php?c=0…pointer&ver=5.2.3:2) at a.fn.init.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object. (heartbeat.min.js?ver=5.2.3:1) wp-auth-check.min.js?ver=5.2.3:1 Uncaught TypeError: Cannot read property ‘hasClass’ of undefined at HTMLDocument. (wp-auth-check.min.js?ver=5.2.3:1) at HTMLDocument.dispatch (load-scripts.php?c=0…pointer&ver=5.2.3:3) at HTMLDocument.r.handle (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object.a.event.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:8) at HTMLDocument. (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Function.each (load-scripts.php?c=0…pointer&ver=5.2.3:2) at a.fn.init.each (load-scripts.php?c=0…pointer&ver=5.2.3:2) at a.fn.init.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object. (heartbeat.min.js?ver=5.2.3:1) wp-auth-check.min.js?ver=5.2.3:1 Uncaught TypeError: Cannot read property ‘hasClass’ of undefined at HTMLDocument. (wp-auth-check.min.js?ver=5.2.3:1) at HTMLDocument.dispatch (load-scripts.php?c=0…pointer&ver=5.2.3:3) at HTMLDocument.r.handle (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object.a.event.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:8) at HTMLDocument. (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Function.each (load-scripts.php?c=0…pointer&ver=5.2.3:2) at a.fn.init.each (load-scripts.php?c=0…pointer&ver=5.2.3:2) at a.fn.init.trigger (load-scripts.php?c=0…pointer&ver=5.2.3:3) at Object. (heartbeat.min.js?ver=5.2.3:1)