I have installed your same GiD version (14.1.0d Windows x64)
copied your attached problemtype (adding a folder images from other anura version, to avoid error reading missing images)
and opened your model and I can export the anura calculation data
e.g.
with Files->Export->Calculation files (.dat files are written ok)
or menu Anura3D->Generate Anura 3D files
Try again resetting your gid.ini file: https://gidsimulation.atlassian.net/wiki/spaces/SD/pages/1210057206/Reset+all+user+preferences
If continue failing with the same error, try to debug with ramdebugger the Tcl scripting proc Anura3D::CreateBatch step by step:
1-Data->Problemtype->Debugger…
and open the Tcl problemtype file \problemtypes\Anura3D_2019.2.gid\Anura3D_2019.2.tcl
2-set a breakpoint with the key in the first line of the proc
proc Anura3D::CreateBatch { channel } {
set project_path [GiD_Info Project ModelName]
…
3-start debugging with
4- export in anura the calculation file, and then the debugger will be stopped in the breakpoint line, then can see variables and go step by step with to try to identify the error