Monitoring/archiving disappeared and turned off

I'm running 3.7.1 because 3.8 doesn't seem to support monitoring.

I manually flushed portions of the chat archive in the MySQL database I run it from, and now the archiving/monitoring service doesn't seem to work. It's not saving chats and the links disappeared. All I did was perform a simple query and delete entries that are old.

Is there something I can do to fix this?