cant invite people to group.

when i went to join RDF i found a grp and was doing the dungeon after about 10 mins in the server crashed and when it came back up any time i tried to invite someone to a group. in my chat window it keeps telling me i already have a pending match. ive tried joining another rdf to see if that would let me inv after i had finished the dungeon. that didnt work. i also just tried to unstuck my character that also did not work. . its not a major issue but it does bug me cus i can no longer be invited to a group either.

Edit: i also just found out i can only inv my accounts to grp but no1 else. it will occasionally let me inv people but like 5 mins later i cant inv again. and it will do this for around 30 mins. if the player im trying to inv relogs i can inv them or they can inv me but once again 5 mins later it starts again.