Institutions query endpoint returns error

[codingfabi]

When trying to call the institutions endpoint, the backend returns the following eror:

Expected UUID instance, received 1\nExpected UUID instance, received 2\nExpected UUID instance, received 3...

I shortened the error message because it is extremely long.
The request body looks like this:

query {
        institutions {
        id
        name
        city
        country
        }
    }

[redfrexx]

I'm looking into it. Looks related to #206

[redfrexx]

Did you delete the docker volume containing the database? The error message sounds like the database contains integers while the data model expects uuids.

[codingfabi]

Ass you suggested, deleting and rebuilding the volumes fixed this problem :)