i made sure it was updated, reloaded and relaunched zotero every single time the bibliography failed to export. i followed every single direction on the troubleshooting errors page. i even turned on the debug log to make sure the problem wasn't not waiting long enough. i synced and unsynced my library, freed up space, deleted superfluous documents and made sure my computer + browser were up to date. i tried every solution. nothing worked.
Your attempt was with 5.0.208, not 5.0.209, which has come out since then and specifically address recent Google Docs changes. That's why I'm saying to try again with 5.0.209.
Beyond that, unless you can completely clear the contents of the document and still reproduce the problem, the last step of the troubleshooting page will by definition isolate the problem. The page also explains how to provide us with more info to debug it further.
Please assume that the people responding to you here 1) generally know what they're talking about and 2) are trying to help you. I understand you're frustrated, but you don't need to fight with us.
5.0.209 is the Zotero Connector, not Zotero. That's what you want to check your version of.
The last troubleshooting step explains how to quickly cut down a copy of the document to find a part that's breaking things, which will let you both remove any broken citations and send us a small relevant excerpt so we can try to fix this case for the future. If new documents work, by definition something is broken in your existing document, and cutting in halves lets you find the part of your existing document that's broken in about 10 steps no matter the size of the document.
If you're still having trouble, we still need a Debug ID for reproducing the problem with the latest version of the Connector, and you should send us a share link for the smallest-possible excerpt that reproduces the problem, as the page says.
Not sure why you deleted most of your comment? To be clear, you showed screenshots of checking for updates in the Zotero app, not the Zotero Connector. The relevant version update is for the Zotero Connector, which you check in your browser's extensions pane.
Upgrade Storage
If you're still having trouble, see Troubleshooting Errors in Word Processor Documents.
i tried every solution. nothing worked.
Beyond that, unless you can completely clear the contents of the document and still reproduce the problem, the last step of the troubleshooting page will by definition isolate the problem. The page also explains how to provide us with more info to debug it further.
But start by trying with 5.0.209.
5.0.209 is the Zotero Connector, not Zotero. That's what you want to check your version of.
The last troubleshooting step explains how to quickly cut down a copy of the document to find a part that's breaking things, which will let you both remove any broken citations and send us a small relevant excerpt so we can try to fix this case for the future. If new documents work, by definition something is broken in your existing document, and cutting in halves lets you find the part of your existing document that's broken in about 10 steps no matter the size of the document.
If you're still having trouble, we still need a Debug ID for reproducing the problem with the latest version of the Connector, and you should send us a share link for the smallest-possible excerpt that reproduces the problem, as the page says.