Identity SQL error

ZZigo11/30/2022
Last 2 commits have the relevant code: https://github.com/dzenis-zigo/Frizerski-Salon-ML/commits/main

On line 60 of SalonML/SalonML_API/Controllers/SeedController.cs

I get an error

Microsoft.EntityFrameworkCore.DbUpdateException: An error occurred while saving the entity changes. See the inner exception for details.
 ---> Microsoft.Data.SqlClient.SqlException (0x80131904): The INSERT statement conflicted with the FOREIGN KEY constraint "FK_AspNetUserRoles_AspNetUsers_UserId". The conflict occurred in database "master", table "dbo.AspNetUsers", column 'Id'.
The statement has been terminated.
   at Microsoft.Data.SqlClient.SqlCommand.<>c.<ExecuteDbDataReaderAsync>b__188_0(Task`1 result)
   at System.Threading.Tasks.ContinuationResultTaskFromResultTask`2.InnerInvoke()
   at System.Threading.Tasks.Task.<>c.<.cctor>b__272_0(Object obj)
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
--- End of stack trace from previous location ---