Started running into the following error out of the blue. We have a Tridion Docs 13 SP2 install, and can't access anything.
[10/22/2019 1:03 PM]
System.Data.SqlClient.SqlException (0x80131904): Could not allocate space for object 'dbo.ISH_SESSIONSECURITYTOKEN'.'ISH_SESSIONSECURITYTOKEN_U1' in database 'ContentManager' because the 'PRIMARY' filegroup is full. Create disk space by deleting unneeded files, dropping objects in the filegroup, adding additional files to the filegroup, or setting autogrowth on for existing files in the filegroup.