Did you know that the insurer can refuse Damage clearence according to a CASCO insurance if you have missed your Annual Technical Inspection (GTP) and the missing GTP is directly causally related to Damages from the Road Traffic Accident that occurred. You can check here at any time if you have a valid GTP on your Bulgarian Vehicle or if you have forgotten to renew it:
https://rta.government.bg/services/check-inspection/index.html