It looks to me like the electrical service needs to be updated, and the panel might be an a high humidity area which is not good imo. Shop it around and ask questions. If it is in fact in a high humidity area you might want to consider addressing the problem with the humidity. My brother had to replace his breaker panel in Florida due to humidity in his garage. He addressed the humidity issue. Why they'd put the panel in the garage in high humidity areas leaves me scratching my head, but that's off topic.