because it did not work for too long time
SiSiplanet official MTA:SA server #1 [РУС]
Monday, 11 February 2019
Last time was online:
Wednesday, 13 February 2019
Date of deletion:
Saturday, 16 February 2019
If you are sure that the server is working again, then try to add it to the Monitoring.
To do this click on the menu item "Add server".