Frozen in Time

A Season 3 episode of Trolls Meet Sing TV Series

Plot
Buster Moon is returning from a trip to Germany. When he comes back, he bought some souvenirs, including a cuckoo clock for Poppy. However, the cuckoo clock appears to be frozen, and the bird inside doesn't pop out and make some cuckoo noises. It's up to Poppy and her friends to fix the cuckoo clock in one day.

Trivia
Poppy has a beeline for cuckoo clocks.