Opel Insignia - Xenon spark plug but throws errors U1511 U1521

Hello, I have an Opel Insignia 2010 with bi-xenon, the problem is as follows, the xenon lights are on, all the lights work, but on the dashboard it gives errors: left dipped beam failure and right dipped beam failure, after reading the errors these are errors U1521, loss of communication between bus lin 2 and the device 1 and U1511, loss of communication between lin bus 1 and device 1. New converter installed, filaments replaced from another car, although not new, but in that car it was ok. Fuses in the lamp system are functional, especially since everything works and the problem is the displayed errors. If anyone had such an example or could give me some advice, I will be grateful, thank you for your attention, best regards

The issue was solved, strangely enough both converters were damaged, the damage was very strange, as they were lit but communicated a fault via Lina, the topic can be closed