store up trouble

Translations
накопить проблемы
By ignoring the warning signs, he is only storing up trouble for himself in the future.
Игнорируя предупреждающие знаки, он лишь накапливает проблемы для себя в будущем.
Definitions
To do something that is likely to cause problems or difficulties in the future, even if there are no immediate negative effects.