Disable all your third-party extensions and see if it still happens.
If not, re-enable them one by one.
If it does, we'd want to see a Debug ID (different from a Report ID) for a Zotero restart through the error, using the "Restart with Logging Enabled…" option.
If not, re-enable them one by one.
If it does, we'd want to see a Debug ID (different from a Report ID) for a Zotero restart through the error, using the "Restart with Logging Enabled…" option.