解困 is a separable verb-object compound (离合词) meaning 'to solve a difficulty' or 'to get someone out of a jam'. The verb 解 can split from the object 困 when a measure word, duration, or complement is inserted, e.g. 解了你的困 ('solved your problem'). You can also add a modifier before 困, like 解燃眉之急的困 ('solve an urgent difficulty'). This pattern is especially common in informal speech and news headlines.