The Editor would not starting 4.16.1

After an unsuccesfull project packing the editor would not starting. On 92% “it fly a way”.
Is there a method to reset the editor setting or deleting some tmp file?
Thanks

Problem solved! I figured out, something around my Maps went wrong. It was a bad idea to send all levels to the Light-build process. There is in the project´s folder a map, called …/Saves/Backup/. I found here the files was - after unnaming - I can copy back into the Maps folder. Now, the Editor can start without crash, and I get my work back.