Teamspeak3 server connect to domain

i want to connect my teamspeak server to my domain but not working

Server is working fine for me. Please try the following solutions

if I try to connect to the address ts3.matex.hu it still doesn’t work, but if I try to the ip address it works, how could this be solved? ( Failed to resolve hostname ‘ts3.matex.hu’)

Read possible solutions in the post i wrote.