This to me looks like it could be more serious then you might expect.
Think of a pair of socks.
One has a hole in it .
The other is just about to get one too.
When you car tire is worn out the rest should be replaced also.
This requires an Electrician to come in and see what is needed.
There are several home brew repair remedies for this condition, but it’s a little bit like taking cough syrup for cancer. The cure is replacing the affected cables and conductors.