A family of Microsoft presentation graphics products that offer tools for creating presentations and adding graphic effects like multimedia objects and special effects with text.
Hi 小王_1114,
I understand you are getting error at Start and wait for an approval stage and while searching, I found the following links that might help find the cause:
Solved: Error on "Start and Wait for Approval" - Power Platform Community (microsoft.com)
Start and wait for an approval is not working - Power Platform Community (microsoft.com)
I also found a support article that describe common errors
Common Errors Creating and Assigning Flow Approvals (microsoft.com)
Besides, as the issue is related to flow, I’ll suggest you post in Microsoft Power Automate Community for expert assistance. This is a specific channel related to issues with Power Automate.
The reason I request you post a new thread is that in Answers forum, we deal with the issues related to SharePoint online and we have limited resources and very little knowledge about Power Automate flow and in Microsoft Power Automate Community, you will get the most qualified pool of respondents, and other partners who read the forums regularly can either share their knowledge or learn from your interaction.
We appreciate your understanding.
With Sincerest Regards,
Neha