I need Help please !!

started my interior project with a first person type , and deleted the hand mesh and weapon , suddenly after i finished everything when i test play i cant move so i have deleted the first person blueprint folder and copy it from another file suddenly my level is gone and everything is black i cant even find it in the game mode , is there a solution or i have to redo everything again , Thanks

Create another FirstPersonType project and copy the deleted folders into your active project. Do not overwrite your customized files. Make a Backup before you start.

thank u very much for ur replay i will try to do it , but what do u mean by the deleted folders , the problem am facing is that i cant find my level even in the game mode ,