It is caused by performing too many executions of a model in a very short period of time.
If this error occurs,reduce the concurrency level of your process. For example, if your process is triggered by an action that creates a file in a folder when using SharePoint triggers, you can reduce the level of parallelism in the action settings.
1.Select "..." , select "Settings" when creating a file in a folder.
2.Reduce the degree of parallelism under concurrency control.