Cant press "Go" in SciTE

I can't press the option "Go" (F5) in SCitE under "Tools".

I've changed the language to Python. Also, when saving as "Save as", the only option to save the file as is blank.

Any thoughts on why?

I have the PLAXIS 2D V20 Update 4 Edition.

I thought this was the problems and followed the steps, but it didn't work: SciTE issues when running a Python script - PLAXIS | SOILVISION Wiki - PLAXIS | SOILVISION - Bentley Communities

Best regards,

Simon