Options, One I can fix it or two, replace this section.
I get inside and I check the other sets. The first set is not working. Hmmm. I check it and find a wire broke. Gosh, the winter was really rough on the lights this year. I check a second, it's dying. It too has a broken wire. Uh, really? Third set has two broken wire.
Closer inspection reveals a little charring, and teeth marks.
Mice nibbled the crap out of the lights. To repair I would have to go through every inch of line and I still can assure myself that they would be safe. I don't need a forest fire for Christmas.
So, I guess I'll be shopping for lights. I may pay for the ones in tubes which may provide more outdoor protection.
But how do the mice chew through wire without being shocked?
I had a rabbit one, her name was Mikat, and she chewed through a refrigerator power cord. She then ate the cord, copper and all.
And she was fine. Lived to a ripe age of 9. (She was a Norwegian Dwarf)