What should I do if I can't afford the store rent when the epidemic breaks out?

You can sue for the return of the original, and you can sue if the rights and interests of the parties are infringed.

Legal basis:

According to Article 64 of the Civil Procedure Law of People's Republic of China (PRC), the parties have the responsibility to provide evidence for their claims. (1) The name, sex, age, nationality, occupation, work unit, domicile and contact information of the plaintiff, the name and domicile of the legal person or other organization, and the name, position and contact information of the legal representative or principal responsible person; (2) Information such as the name, gender, work unit and domicile of the defendant, and information such as the name and domicile of the legal person or other organization; (3) the request and the facts and reasons on which it is based; (4) Evidence and its sources, names and residences of witnesses.