Oh dear, it seems your LED Christmas lights are causing some trouble. Let's troubleshoot them together to see if we can find the issue.
First, make sure the lights are plugged into a working outlet and the circuit breaker hasn't tripped. Next, check if there are any blown fuses or damaged light bulbs. If none of these are the problem, try testing the lights with another outlet or a different set of bulbs.
If all else fails, it might be time to replace the entire light strand. Sometimes, even the best lights can malfunction or wear out over time.