1. The information is incomplete or incorrect. You can check whether the information is complete again. If the information is incorrect, you can fill it in again.
2. After the pre-trial is passed, the relevant materials need to be submitted to the relevant departments for acceptance. If the materials have not been submitted to the relevant departments, they cannot be accepted.
3. If the pre-trial has passed, but the acceptance time has not yet arrived, you can wait for a while, and then accept the case.
4. if the above reasons are not, you can contact the relevant departments for consultation, understand the specific reasons, and then solve them according to the reasons.
I hope the above information is helpful to answer your question.