So, my problem is with a marketplace plugin I use (WCMP). It has a dashboard for vendors. when I click on several tabs in the dashboard it doesn't work. (see picture). The support from WCMP said that :
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"Hi egypttrotter,
Most of the time, this type of issue is because of either plugin or theme conflict. To investigate further, you need to activate standard WooCommerce (Twenty/storefront) theme and check. For plugin conflict, please deactivate all plugins (except WooCommerce, WCMp and addons) and then activate each of them consecutively.
Please perform this test on your testing site only, not live site , to avoid inconvenience. Kindly keep us posted with the update.
Just to keep you informed regarding the below scenario-
” WordPress 5.5 has come-up with major jQuery update. As because it’s a major update and majority are facing issues- WordPress team was already aware of this situation and has released a plugin, to get immediate relief you can install it too- https://wordpress.org/plugins/enable-jquery-migrate-helper/
Meanwhile, Please check closely, you might be facing more functionality related issues in frontend due to jQuery update. Please contact the theme’s developers to see if they have an update, as this needs to be fixed at theme’s end. Kindly let us know otherwise. Will look into your matter with utmost priority.”
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Please note that I already have the jquery migrate helper plugins activated as I have had a similar issue with another plugin (wp bakery)
I don't know how you can help or if you can confirm that there is a conflict between WCMP and the theme. you can find attached a screenshot of where the problem is on the vendor dashboard, my FTP info, my wordpress account
Let me know if you need further info.