I have attempted to trouble shoot the online connection to ghosts on ps4 with no success, however I can connect online to other games and play perfectly fine. Is there an issue with the online servers for the UK?

I would like to know why I can't play online and the message "server is not available at this time, try later appears" yet I can play other Ps4 games online perfectly fine?? Is it an issue with my interest or the servers for Ghosts??