LOL...
I get it now...
You did everything right.
The problem is in the... "patryk1_testowo2" time table that you playing.
Author of the timetable, has wrongly insert a locomotive.
He insert a diesel engine, whit electro parameter, so the simulator read it, as a electric engine. The track to Borek is whiteout a electric cable above it (only for steam and diesel).
So as you see in the radio talks, the mechanist said:
08:50] 68301: Testowo do 68301, wpuœci³eœ mnie na tor bez sieci trakcyjnej!
"Testowo, you have push me on the track without electric cable".