Library not loading, even after trobleshooting

sorry I posted a protected-content page, but the issue is in the backend

Checking the basic information: Is your local archive synced to a Web Library on zotero.org? Is your web library’s User ID and Private Key set in the Accounts tab? Have you tried clearing the cache? Removing the library and then adding it back?

Thank you for your reply.

I have a web library, some time ago zotpress was working and I use it since 2015 more o less. Account is set, and reinstalling the plugin several times I had to set it up again and again. Cache: I have not any cache plugin; if you mean browser cache, I tried from different PCs. Removing zotero web library and adding it back? I haven’t done this so far, if you think it could be useful I’m going to try!

Under the Accounts tab is that “Cache” column with the circular arrow — if you click that it will flush the Zotpress cache and reload from the web library. (I use it when one of my researchers wants to see their publication list updated immediately.) The remove and replace option is just slightly more serious, but shouldn’t cause any problems.

These may not work, but it helps to rule them out as solutions.

I’m still running on an older version of PHP, so if there’s a glitch with 8.x I haven’t encountered it yet.

Ah ok, you were referring to zotero cache: already done that, and as I said I already removed and replaced the entire plugin several times, doing again reconfiguration of the account (like you do when remove and replace only the account).

Unfortunately nothing of that works for me. Thank you for your kind replies.

Could it be that your Zotero API key needs resetting? Check this or generate a new one under https://www.zotero.org/settings/keys