STPCRIT, String pool space critical
Run Time Error: This indicates that the process has exceeded the heap (string pool) limit specified in the $ZSTRPLLIM ISV. If you do not take prompt action to reduce the process memory requirements, at the next heap expansion, GTM produces an STPOFLOW error, which terminates the process.
Action: Investigate whether the process memory usage is appropriate, and if so, increase or remove the limit. Otherwise correct the cause(s) of the excessive memory consumption. Please see the documentation for $ZSTRPLLIM for additional information.