Cant accept party requests at forsaken isle

When I accepted party request from people at forsaken isle, I wouldn’t join the party even if I pressed accept. Though, it would go through only when I received a request from one guy whose name was TheLastBoss or something like that.

The party might’ve been full. In certain situations, you can be invited to a full party but you won’t be able to join.

That was not the case. I had a friend with me who invited me. He also had the issue but he told me he was spammed by party requests. After clicking accept multiple times, he managed to get into a party of 4 including him. He then invited me but i when I pressed ‘accept’ nothing happened