Help I tried to convert camera with lots of camera movents and assets spawnable, unreal crashed saving and now I cant get them back

I was having problems loosing camera moviments and assets when sayign or save all or savbign as new back up loevel of sequences so I tryed to follow advice to covert my cameras and actors into spoawnable actors only when iu tried to save uran crashed, now when i real loaded the level and open the sequences it cannot find the camera and the assets at all so they stay red or them come up as yellow in the seqwuences i was useing saying them cant be found, I have weks of cameria moiovments on this how do I get it back please… in a panic