[xcrysden] Error with xcrysden for crystal03

[Oscar U. Ojeda]

Hi
Im trying to run xcrysde as gui for crystal03. When I try to visualize a structure either generated by xcrysden or a previously created input file, i get the following message:
ERROR while executing
exec
/(PATH)/xcrysden/XCrySDen-1.4.1bin-static/bin/gengeom 0 11 1 1 1 1 
/(PATH)/xcrys_tmp/xc_6099/xc_gengeom.6099

The ERROR INFO is as follows:

invalid integer: read unexpected character
apparent state: unit 34 named fort.34
last format: list io
lately reading sequential formatted external IO

Anyone has any experience?
Thanks
Oscar