Legal analysis: this case is a breach of contract, and there is no liquidated damages. The parties concerned can settle it through consultation. If negotiation fails, the observant party may bring a lawsuit to the people's court, demanding that the defaulting party bear the liability for breach of contract.

Legal basis: Article 186 of the General Principles of the Civil Law of People's Republic of China (PRC) * * * If one party breaches the contract and damages the other party's personal rights and property rights, the injured party has the right to choose to require it to bear the liability for breach of contract or tort.