camera stop working after flashing roms 4.4.2 and CM-12.1 ( s3 neo )

Hey guys , i have galaxy s3 neo i9301l and i wanted to reset it but after that was waiting the device startup but its stuck on samsung logo .then i installed new rom fro sammobile but when i try to open the camera i got a warning alerte saying " server error occurred .restart camera ":( . i tried to install manh roms from sammobile but the same issues
and i tried to instal a cyanomgmod but the camera failed .
please guys help me