How to solve the contradiction between father-in-law and son-in-law

The solution to the contradiction between father-in-law and son-in-law is family mediation. The son-in-law's father-in-law finds out the root of the contradiction, and the daughter (wife) and her family take the initiative to mediate, understand the root of the contradiction between the two sides and formulate mediation strategies. Make feasible plans according to different contradictions, and when the two sides are relatively relaxed, the family creates opportunities and tries to resolve contradictions.