First of all, we are very sorry that we could not solve this category problem. Mercari has deleted the categories you have previously submitted. We waited for a few days, but Mercari didn't do anything and asks you to update the category of all your postings.
PrimeLister extension needs an installation files to work. Sometimes your computer may delete these chrome extension files for performance purposes without notifying you. When this happens, PrimeLister extension can't work and gives you this error.
You would have a duplicated copy when you relist a Poshmark listing that has an active offer because PrimeLister cannot delete the listings with active offers. Relisting tasks for your products that has active offers will be skipped in the queue.
Sometimes if you have PrimeLister in a background tab or if it is minimized, then Google Chrome will pause it. A workaround to this is to keep Poshmark in a separate window (in the foreground tab), which will let you multitask when PrimeLister is running.
Cross-listing and re-listing are not the same. You can cross-list a platform but this doesn't mean you can relisting. We will also support all platforms we support for cross-list for relisting. If you are getting this error, you just have to wait.