5 ways - [...requested the Runtime to terminate it in an unusual way...]

Hello,

i have this problem since today. I haven't done anything to my pc or installed new programs. Only when i do 5 ways i get the error "This application has requested the Runtime to terminate it in an unusual way. Please contact the application's support team for more information." It is something related to c
++. But i dont want to spend divines to check if i keep getting it. Even during the juicest map with delirium beyond and legion i don't crash so i dont know why it is specific to 5 ways. I tried in NA realm and EU realm (i am EU).

Any suggestion?

thx