Geco - Ecotect connection problem

Have anybody of you guys experienced a "connection" problem with Geco and Ecotect? When I try to export Mesh geometry from Grasshopper with Geco, to Ecotect, I always get an error message, saying

"Script Error: Error: Load failed! Could not open specified file. C:\Users\Gy?rgy\Documents\geometry.mod"

This happens only when I want to export meshes, when I try to export points, everything works fine. Do you have any idea, how to solve this problem?

Thank you, very much!!