the error is that the map contains 2 island devices although there should be 1, and I don't know how to delete the second one, tutorials don't help

Hello, I encountered such a problem, I was calmly making my map in the creative mode of unreal engen, and suddenly I could not start the game on the map that I was building, and I got an error that I can’t remove and which greatly slows down my productivity, the error is that my map supposedly contains 2 island setup devices although there should be 1, but I did not add 2 and I don’t know how to remove it on the map it is not shown through the files I also did not succeed, so I decided to ask you for help, please help