Failed to load plugin url: https://domain.com/js/tiny_mce/langs/gb.js on back office product page

[skinnybloke]

I have just upgraded my Prestashop site from v8.2 to v9.0

The back office product page displays the following error, but it doesn't seem to affect the functionality of the page

Loading...
Failed to load plugin url: https://domain.com/js/tiny_mce/langs/gb.js
×Failed to load plugin url: https://domain.com/js/tiny_mce/langs/gb.js
Failed to load plugin url: https://domain.com/js/tiny_mce/langs/gb.js

Any ideas what this is?

[juanrojas]

May this come from the text editor? I'm not sure, check to rule out Enter a product and try to change your description and save

[skinnybloke]

I can successfully change the description and the short description.

[Prestashop Addict]

Try to re import language pack.

[skinnybloke]

I can't see an option to re-import the language pack.

[Prestashop Addict]

International