can't connect to .onion services

Hello there i have a problem, i can't seem to connect to .onion addresses on tor but can connect to any other website when i put in for example silkroadvb5piz3r.onion or any other hidden service i get a message saying unable to connect i do not have a firewall on and i do not know what the problem can be can you help me please

Trac:
Username: ukrca