If that panel is a sub panel it is required to have the neutral isolated from the ground bar. From the looks of it is a sub panel with grounds to the left, neutrals to the right and a 4 wire feed.
The metal bar the connects the two together is removed which is correct, they must be separate, however from the looks of it the ground bar is floating. The ground bar should be bonded to the can. In addition to that it looks like the neutral might be bonded to the can instead. Older GE panels will usually have a screw below the right neutral/ground lug. In this case it appears to be in place (silver white screw) bonding the neutral to the case which is not correct. The ground on the left should be bonded to the case but its not. Guess someone mixed the two up.
Hope I answered you question