Deleting an address endpoint causes not to be able to load routes anymore

[niels-przybilla]

Describe the bug

I deleted an address endpoint. After deleting the address endpoint i cannot access the route tab anymore.
It is only in this specific mailserver. All other route setting of other servers are working,

To Reproduce

1. Go to "Routing"
2. Click on Address endpoints
3. delete one ( i had only one)

Screenshots

Environment details

• OS: Ubuntu 20
• Version 3.3.2

[willpower232]

You will need to rummage through postal logs web in order to find the exception message and full stack trace so someone can help you further.