The phrase "money troubles" refers to situations or problems related to not having enough money or having difficulties managing one's finances. Full definition
Many people with money troubles — even those who seem to be living well on the surface — prefer not to discuss money with family and friends. (businessinsider.com)
Keep out of money trouble by working out how much money you'll actually have left to spend on your mobile after taking into account your other expenses such as fares and entertainment. (moneysmart.gov.au)
Look, there's no shame in getting into money trouble. (moneysmart.gov.au)