Opensees.exe is closed after analysis

[mohammadmasroors]

Hi dear researchers,

I have modeled a 3D truss with columns on the sides. I've used truss and elastic beamColumn elements. My analysis result had not any problem and was verified with Sap2000 completely, but after finishing the analyze, a window error with a message of close the opensees.exe appeared and Opensees was closed. I want to analysis the model with Matlab in a loop so this error will stop the analysis process.
I used equalDOF for the end of the beam elements where truss and column are connected.

the error is: fortl: error (200): program aborting due to window-CLOSE event Image

Can anyone help me with this error??

best

[fmk]

need to see the script.