There are several issues with this 200 Amp main electrical panel. ONE of the defects seen here is “double tapping,” which is where two or more wires are connected under the same lug. We see this often in homes we inspect. This is a safety hazard that can lead to overheating, arcing, and even fire. Finding or fixing this condition is not a DYI task.
Double tapping should be reviewed and repaired by a licensed electrician.