Meaning of “trouble” - Learner’s Dictionary

trouble

verb [ T ] uk us /ˈtrʌbl/
WORRY

If something troubles you, you think about it a lot and it makes you worry:

The situation has been troubling me for a while.
FORMAL REQUEST formal

used to ask someone politely to help you:

I'm sorry to trouble you, but could you tell me how to get to the station?

(Definition of “trouble verb” from the Cambridge Learner’s Dictionary © Cambridge University Press)