config a domain as ssserver address, the domain got hijacked!

[bit-rocket]

Hi guys, I configured a domain name as my ss client server address, it works fine for a few months, but recently, I found the domain was hijacked!
I ping my domain, and got a strange ip 8.7.198.45, which is different from the ip I set in my domain provider!

So, please help, I was wondering, if ssclinet should resolve the configured server domain address on ssserver!!!!