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Not sure which plugin you are talking about, can you please share some screenshot about your issue?
Please see the source url of select2.min.js file that showing on console area.
Can you please deactivate our "Post Grid" plugin and check these error still showing or not? i guess this error not come from our plugin, but from 3rd party plugin,
is it possible to share an admin account to your site, i will check the issue. Regards
Thanks, I have updated but the issue still persists.
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