Trace log:

[0.0001] log started.
[0.0001] RH: creating DBAL
[0.0024] RH: creating TPL
[0.0059] RH: creating MSG
[0.0083] RH: constructor done
[0.0791] milestone (0.0791 sec):
[0.0978] ERROR [!....]: DBAL [mysql] Error: Query failed: SELECT * FROM ria_upload (Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (11))
[0.0980] log flushed.

prematurely dying.