Rainbow reporting false language specified and stopping process

[D.E.G.]

Hi, I have tried several tools and utilities in Rainbow installed on a Window 11 with Parallels on an ARM chip. I get always the following error albeit tmx being in DE-ES.

Any suggestions?

‌

=== Start process
Input: //Mac/Home/Downloads/WfaTM_de2es_BSORGLOBAL.tmx
ERROR: The source language specified is 'en-US', but no <tuv> in the <tu> are set to this language.

Error count: 1, Warning count: 0
Process duration: 0h 0m 0s 31ms
=== End process

‌

[D.E.G.]

I found out that I needed more parameters