After upload the files if you got File corrupt error please follow the steps to fix it.
First of all let us clear to you why this error coming. If files encoded through Ioncube binary mode and you are uploading the files through any FTP client and you have selcted File transfer type ASCII in that case error should be appear.
To fix this error please chnage the file transfer type to Binary for eg. follow the attached screenshot and reupload the files again.