FairCom Server terminated with an unhandled exception after a single connection opened a file more than 1024 times. The logic has been modified so that attempting to open a file more than 1024 times in a single connection will now fail with error code COFM_ERR (1103) and will preserve the proper co-file state. If a ‑1 co-file link is found when closing the file (which is now unexpected), the code avoids using the invalid co-file link.