Star Wars Battelfront Launch Issues

Hi,I have a software problem. I got the Origin Version of the game but upgraded later to the Celebration Edition through the epic games event.When i try to start my game it appears to not launch.Origin and the Epic games Launcher pop up but the Game is not launching. I tried many methods fixing this issue and all these basic tipps the support pages gave didnt seem to work at all. Today I found out that I dont have  specific files my friend whose game is running has. I am missing 4 files in my Documents/Star wars Battelfront .In there are as well the game booting files.Is there any way to get this files back.I must have deleted them somehow on accident? Because even reinstalling the entire game doesnt work