If you are certain that the malfunction is caused by a compiler or runtime routine error, you can either open a PMR or submit an APAR for the error. For more information about handling compiler and runtime routine malfunctions, see the IBM Enterprise PL/I for z/OS library. Meanwhile, you can try an alternative way to perform the operation that is causing the trouble. A bypass is often feasible, since the PL/I for MVS™ & VM language frequently provides an alternative method of performing operations.