Error 51 - Internal error

Internal error - (%ERR_INTERNALERROR) - A malfunction occurred within the PowerBASIC run-time system, or the operating system reported an error that PowerBASIC was not expecting (or was unable to decipher). For example, attempting to KILL (delete) an open file can cause this kind of problem.

If you are unable to identify the cause of the problem, contact the PowerBASIC Technical Support group with information about your program.