Hello @mariatogonon
I have used this fixed:
I’m curious if the temporary fix that I did will work for you too. Try downloading the “Enable jQuery Migrate Helper” plugin, activate, and in the plugin settings, select the earlier “legacy” version of jQuery (not the one that ships with the latest version of WordPress)
If this fixed your issue, it will also confirm my issue and help prove that the popup plugin is having issues with jQuery 3.5.1.
And it works. Can you help me what I should do?