Cant cancell an insta-book

[Sebastian13]

i recieved 2 instabook  for augost  but i wont be able to host in those dates, i was sure i deactivated the instabook opcion in my profile, but apparently it was not done properly.  when i try to cancell those reservations, i recieve an error message. i have tryed for over 2 hours and hav not been able to cancell thos reservations. any help?  the message just says: Ups there has been an error, try again.