Update:
Hosting support told me that problem of constant server problems for the last days were in server's power supply.
Good news: Yesterday they moved gotop100.com to another server. Everything seems to work properly now .
Not good news:
BUT they did no final synchronization of data right before switching DNS to new server.
Because of such actions some changes that were made to toplists or sites in some yesterday's short period of time can be lost.
If you made any changes to your toplists or sites yesterday then please check them and if they are not saved then please redo them.
I'm sorry for this situation. Hope this will never happen again.