Aug 17, 2020 16:59:22.632 [0x7fd8f3408740] ERROR - Database corruption: sqlite3_statement_backend::loadOne: database disk image is malformed
Aug 17, 2020 16:59:22.632 [0x7fd8f3408740] ERROR - Error: Unable to set up server: sqlite3_statement_backend::loadOne: database disk image is malformed (N4soci10soci_errorE)
Usually that’s not linked to an update but it could have collided with Plex trying to update the already corrupted database. Corruption of the database can happen if you add lots of new stuff in one go and Plex gets stuck processing things or if the server isn’t shut down gracefully.
There’s a support article on how to diagnose/repair the database: