An error occurred while updating the entries. See the inner exception for details in entityframework wpf mysql

Question

i'm trying to connect wpf desktop project to MySQL database and after start the project I found this exception that I don't know how to do with it and this my class to connect to mysql

using AYMEN.Data.Layers.Entities;
using Microsoft.EntityFrameworkCore;


namespace AYMEN.Data.Layers
{
    public class SuivOrDbContext : DbContext
    {
        string connectionString;
        public SuivOrDbContext(string connectionString)
        {
            this.connectionString = connectionString;
            //optionsBuilder.UseMySQL(connectionString);
            //Database.SetInitializer(new DropCreateDatabaseIfModelChanges<SuivOrDbContext>());
        }

        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
        {
            optionsBuilder.UseMySQL("server=localhost;database=SuivOr;Uid=root;Pwd=admin;");
        }

        public DbSet<User> Users { get; set; }

        public DbSet<Settings> Settings { get; set; }

        protected override void OnModelCreating(ModelBuilder modelBuilder)
        {
            //Configuration.ProxyCreationEnabled = true;
            //modelBuilder.Entity<Project>().Map();
            //modelBuilder.Conventions.Remove<PluralizingTableNameConvention>();

            base.OnModelCreating(modelBuilder);
        }
    }
}