If Party A fails to perform the contract without reason, which constitutes a breach of contract, it shall be handled according to the provisions of the contract; If there is no provision, it shall be settled according to law, and Party B may bring a lawsuit to the people's court.

Legal basis:

People's Republic of China (PRC) Civil Code

Article 577 Where a party fails to perform its contractual obligations or fails to perform its contractual obligations in conformity with the contract, it shall be liable for breach of contract such as continuing to perform, taking remedial measures or compensating for losses.

Article 578 Where a party expressly expresses or shows by his own behavior that he will not perform his contractual obligations, the other party may require him to bear the liability for breach of contract before the time limit for performance expires.

Article 579 If one party fails to pay the price, remuneration, rent or interest, or fails to perform other monetary obligations, the other party may demand payment.