The server will have some down time due to problems related to the hosting company. The server will be up as soon as possible, but there isn't much information about the exact date/duration of the down time.
You can add this IP address to your SA:MP client if you want to play on my home hosted server in the meantime: 18.104.22.168:7777. This should be up later today (within some hours).
It's best to bookmark this website for any updates regarding this issue.
Sorry for the inconvenience