I am writing a Login Form for a site on the MVC Net Core 6 Web App, but I can't find out how I can fix this error. This error occurs when I am already sending the user's data for writing to the database. Before I created the Login column in Asp Net Users to record a unique user login, registration was successful - without this error.
Updating of the database - everywhere there is a records of the types:
Login = table.Column<string>(maxLength: 256, nullable: true),
I tried using "using" instead of await, fix initialization app.Use(async (context, next) => (removed/changed) - doesn't help.
What do you think such an error occurs?