https://www.wpdownloadmanager.com/support/topic/problem-with-accordion-add-on/
Problem with Accordion add-on - WordPress Download Manager
Jun 9, 2023 - I purchased WPDM Pro and Accordion Add-on a couple of hours ago. I also installed TinyMCE Button and Extended Short-codes add-ons. I created some
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https://elearning.adobe.com/2018/10/problems-accordion-interaction/
Problems with Accordion Interaction - eLearning
Oct 2, 2018 - Trying to reinsert a defective accordion interaction produces a "Not a Valid Widget" error.
problems withaccordioninteractionelearning