I've got a DS418play with DSM 6.1.5-15254 Update 1. I followed a guide to add Plex's key and manually install PMS 1.12.0.4829-6de959918 manually rather than the older version from the package center. However, I'm getting a SQLite3 error whenever I try to start the service.
Here are the relevant lines from the log (I really wish the log viewer allowed copying):
ERROR - SQLITE3: 0x10, 1, no such table: schema_migrations
ERROR - Database corruption: sqlite3_statement_backend::prepare: no such table: schema_migrations for SQL: select version from schema_migrations order by version
ERROR - Error: Unable to set up server: sqlite3_statement_backend::prepare: no such table: schema_migrations for SQL: select version from schema_migrations order by version (N4soci10soci_errorE)