Migration ASP.NET Core 6.0 to 7.0

Question

Project works fine in ASP.NET Core 6.0 but when I tried to migrate it to 7.0, it builds successfully without errors but at runtime I got this error:

Message "GenericArguments[0], 'AbilityFix.Model.Models.Forums', on 'T MaxIntegerT' violates the constraint of type 'T'." string

• InnerException  {"Method System.Linq.Enumerable.MaxInteger: type argument 'AbilityFix.Model.Models.Forums' violates the constraint of type parameter 'T'."} 
  

System.Exception {System.Security.VerificationException}

Error in startup.cs file

 services.AddAutoMapper(mapperConfig => mapperConfig.AddProfiles(GetType().Assembly));