Three problems
- Main electrical running through the side of the panel
- Front panel missing slot blockers
- Missing screws

Picture 2, main electrical lines feeding through the side of the panel protected by duct tape a handyman’s fallback for all types of amateur repairs.

Picture 3, Moisture intrusion has caused corrosion on all the breakers which now need to be replaced by a licensed electrician. Last, neutrals and grounds are sharing the same busbar normal with older homes. If this panel is to be replaced should be upgraded to current standards neutrals and grounds are on their own separate bus.

Picture 4, inside the panel it’s missing a top knockout plug. Beside it the main electrical feed is open where the main should’ve come through. Third problem, electrical wire needs to be reinstalled inside the NM clamp.
If you want it done right hire a pro!