Photos - failure 3.006 when attempting to export pictures

I get the error message shown below when trying to export pictures from Apple Photos app. I have a Mac mini 16GB 2667 MHz DDR4 using Ventura 13.2.1. Graphic is Intel UHD Graphics 630 1536 MB and Processor 3 GHz 6-Core Intel i5.

I try to export to the local HD where also the Photos library is located. I have also tried to export to external HD with same result. It seems the problem counts 4,000+ pictures out of my total 36,000+ pictures.

Please note that the screen shot below is in Danish language. It says "Unknown error (3.306).

I have searched the Internet for solutions without learning much. Only it seems to be an issue connected to edited photos when running Ventura.

I am far from at computer specialist and hope that someone will be able to help me.

Best, Nils - Copenhagen, Denmark