After running the query, right click the C:\Program Files (x86)\Malwarebytes Management Server\App_Data\scdb.mdf again
Click Tasks > Shrink > Database
Perform a database shrink, following the wizard
Attempt to log into your mee/mbmc console again
Once logged in, please click the Other Settings tab under the Admin pane
Change your Cleanup Setting to a higher frequency. This will automatically remove older logs and help keep the database in a more functional size This should help reduce the database size and allow you to log in and use mee/mbmc again.
Create a script to delete the contents of “C:\ProgramData\Malwarebytes\Malwarebytes’ Anti-Malware\Logs” on your clients as well. The clients will resubmit their old logs and fill the DB up again if they are left.