How long has it been since it expired? If you just expired! Just pay the fee within one month without any late payment fees! If it exceeds one month, then the additional fees and late fees must be paid within 5 months after this month! If you haven't paid yet and you will receive a "termination of rights" notice, you can restore the validity within 2 months after receiving the notice! If it's all passed, then the patent will be invalidated! It depends on your situation!
The total *** probably gives you 9 months to deal with it!
I hope it helps you, welcome to ask questions and hope to adopt them