Additional question to crosslinking polymernetwork

Hallo again,

I found a very usefull script Epoxy Croslinking and try to use it for polyurethane network but have some problems:

1) I build monomers Diisocyanate and Polyol-Oligomer and give them Names from Script "4Oligomer" and "BisphenolA"

2) I build Amorphous Cell (and I try it also with packaging) and became test.XTD output...I rename it to test.xsd

3) I load perl script and change ring opening to "N"

4) I try to run it but i became a problem massege:

in line 228 .....give a mistake "unable devide through 0"...

ad also....Unable to rename or move file because a file already exists in the target location (writing property "Name") at -e line 221

Any help will be perfect!

Best regards

Igor