U have a short circuit in the wiring of the tree, this is what a circuit breaker is intended to do, until u remove the lighting (I am assuming it is lighting) from the tree and either replace it or repair the short the circuit breaker will continue to trip and the light to blink the red warning, this is a fire hazard, don't keep resetting the circuit breaker, have the short repaired.
Answers & Comments
U have a short circuit in the wiring of the tree, this is what a circuit breaker is intended to do, until u remove the lighting (I am assuming it is lighting) from the tree and either replace it or repair the short the circuit breaker will continue to trip and the light to blink the red warning, this is a fire hazard, don't keep resetting the circuit breaker, have the short repaired.