This is a part of Etrieve Flow Configuration.
1. Open Configuration Menu
Open Configuration Menu in Etrieve Central.
If you’re Etrieve Central Administrator, you’ll have the access to the Flow, Forms, and Form Groups
Settings in the Settings Cog/Menu.

If you don’t see the Settings Cog, then you might not have access to it. You need to change the access within Etrieve Security.
2. Click on Settings under Flow
Click on the Settings Menu Item as shown in the screen capture below.

Once you click on the Settings, you’ll see another User Interface that’ll show the count of failed items.
Only the documents that failed to process will be counted under the Submission Errors field.
3. Click on the Reprocess button
If you have 0 in the counter for failed items, you don’t need to do anything and the “Reprocess” button will be disabled too. But if you see the counter value more than 0 then the “Reprocess” button will be enabled and you’ll be able to click on it to reprocess the failed content docs.

One you click on the “Reprocess” button, it’ll ask for a confirmation and Etrieve will reprocess the failed Content documents.
You should be able to see the updated system within a few minutes and if you still see the errors, check the logs for details.
central error etrieve flow reprocess solution