Another upgrade from 3.3 to 3.4 issue - fails with error about dois table. How to continue?

This issue is related to the database migration - it doesn’t look like it applies to your error.

However I’ve seen similar errors and this issue is related: Issue with Missing Plugins after Upgrading to OJS 3.4 - #4 by Igor
I think you need to manually remove twitterblock form the versions table.