Custom HTML widget not working after wordpress update

Hi,

The custom HTML widget not working after wordpress update V4.9
The HTML widget open but there is no editing area.

The chrome console show erros like:

Uncaught TypeError: Cannot read property 'init' of undefined
    at widgets.php:143
Uncaught TypeError: Cannot read property 'modelConstructors' of undefined
    at widgets.php:147
Uncaught TypeError: Cannot read property 'modelConstructors' of undefined
    at widgets.php:155
Uncaught TypeError: Cannot read property 'modelConstructors' of undefined
    at widgets.php:163
 Uncaught TypeError: Cannot read property 'modelConstructors' of undefined
    at widgets.php:171
Uncaught TypeError: Cannot read property 'idBases' of undefined
    at widgets.php:181

Anyone have any suggestions?

Thanks

• This topic was modified 7 years, 1 month ago by CloudChoice.