Drupal now has Ckeditor 5 support and while switching to this editor this plugin is not working.
Go to text format and editor config. Create/edit text format and enable the plugin.
Update the filter type.
Drupal\filter\Plugin\FilterInterface::TYPE_MARKUP_LANGUAGE -> Drupal\filter\Plugin\FilterInterface::TYPE_TRANSFORM_IRREVERSIBLE
/**
* Provides a filter to generate jQuery UI accordion and tabs widgets.
*
* @Filter(
* id = "jquery_ui_filter",
* module = "jquery_ui_filter",
* title = @Translation("jQuery UI accordion and tabs widgets"),
* type = Drupal\filter\Plugin\FilterInterface::TYPE_TRANSFORM_IRREVERSIBLE
* )
*/
Active
2.0
Code
The same fixes are included in the ✨ Drupal 9, 10, 11 compatibility for jQuery UI Filter Needs review