problems running analysis with usersubroutine

Hi, I am running an analysis with a user subroutine in Abaqus. The program compiles the code successfully but the standard analysis immediately stops giving me the error below. No errors/warnings in the .dat file and no .msg file is created. Does anyone have suggestions? 

Abaqus Error: The executable standard.exe
aborted with system error code 1073741511.
Please check the .dat, .msg, and .sta files for error messages if the files
exist. If there are no error messages and you cannot resolve the problem,
please run the command "abaqus job=support information=support" to report and
save your system information. Use the same command to run Abaqus that you
used when the problem occurred. Please contact your local Abaqus support
office and send them the input file, the file support.log which you just
created, the executable name, and the error code.