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How to fix Solver error 4031 contact marc analyst

I am running a script from cmd in Marc 2019 and after aproximately 15 minutes the simulation stops running. It does not complete a single increment and there is no exit number. The only thing I could reach to see, is a message at the end of .log file which says "Solver error 4031 contact Marc analyst".
 
 
Can anyone help me with that?
Thank you very much in advance!