First, bring a lawsuit to the court again, but bring it for other reasons, which will affect the judgment. As for how to do it, you have to think for yourself!
The second is to lodge a complaint or protest with the court or procuratorate, and lodge a complaint with the court on the grounds that the main evidence of the original judgment or ruling is forged and the main evidence of the original judgment or ruling is not cross-examined; The law does not prohibit the parties from appealing to the procuratorate after the court rejected their retrial application. If the court decides to reject the appeal, it can apply to the procuratorate for protest, stipulating that the wrong judgment caused by factual evidence should be submitted to the court of first instance for retrial. When appealing, you need to apply for a protest, the original or photocopy of the effective judgment document, prove the evidence materials you claim, and provide accurate contact information for the case handlers to contact. The ways and means of appealing to the procuratorial organs are flexible, which can be submitted to the procuratorate at the same level of the court that made the effective judgment or to the procuratorate at a higher level.
My humble opinion, the law is half a bucket of water, I hope it helps!