Blazor Server App - System.InvalidOperationException: Internal connection fatal error

Hi, I managed to deploy and run my blazor server app. But as soon as it runs I have errors. I use this code to initialise my db

 _("Initialize do EnsureCreatedAsync");
 await context.Database.EnsureCreatedAsync();//CRASHES

 _("do seeding methods");	
	// Call your seeding methods here...
	await makeRoles(context);//ALSO CRASHES
 _("a");
 //if the system is entirely fresh there will be no invitation codes so we make one now for the first user
 await initSystemIfNeeded(context);
 _("b");
 await makeInvitations(context);//
 _("c");
 await downloadConfig(context);
 _("d");

at this line context.Database.EnsureCreatedAsync()

I get this error:

 [11:31:07 INF] ########[UI]DbInitializer.cs: An error occurred while seeding the database: exception is {System.InvalidOperationException: Internal connection fatal error.                                        
    at Microsoft.Data.SqlClient.TdsParserStateObject.TryProcessHeader()                                                                                                                                             
    at Microsoft.Data.SqlClient.TdsParser.ConsumePreLoginHandshake(Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity, Boolean& marsCapable, Boolean& fedAuthRequired)                            
    at Microsoft.Data.SqlClient.TdsParser.Connect(ServerInfo serverInfo, SqlInternalConnectionTds connHandler, Boolean ignoreSniOpenTimeout, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean 
icationMethod authType)                                                                                                                                                                                             
    at Microsoft.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, SecureString newSecurePassword, Boolean ignoreSniOpenTimeout, TimeoutTimer timeout, Boolean 
                                                                                                                                                                                                                    
    at Microsoft.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(ServerInfo serverInfo, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance, SqlConnectionString 
Timer timeout)                                                                                                                                                                                                      
    at Microsoft.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(TimeoutTimer timeout, SqlConnectionString connectionOptions, SqlCredential credential, String newPassword, SecureString newSecurePassword, 
                                                                                                                                                                                                                    
    at Microsoft.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, SqlCredential credential, Object providerInfo, String newPassword, 
erInstance, SqlConnectionString userConnectionOptions, SessionData reconnectSessionData, Boolean applyTransientFaultHandling, String accessToken, DbConnectionPool pool)                                            
    at Microsoft.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection, 
                                                                                                                                                                                                                    
    at Microsoft.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection(DbConnection owningConnection, DbConnectionPoolGroup poolGroup, DbConnectionOptions userOptions)                                   
    at Microsoft.Data.ProviderBase.DbConnectionFactory.<>c__DisplayClass47_0.<CreateReplaceConnectionContinuation>b__0(Task`1 _)                                                                                    
    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 ---                                                                                                                                                                  
    at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)                                                                                     
    at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot, Thread threadPoolThread)                                                                                                           
 --- End of stack trace from previous location ---                                                                                                                                                                  
    at Microsoft.EntityFrameworkCore.Storage.RelationalConnection.OpenInternalAsync(Boolean errorsExpected, CancellationToken cancellationToken)                                                                    
    at Microsoft.EntityFrameworkCore.Storage.RelationalConnection.OpenInternalAsync(Boolean errorsExpected, CancellationToken cancellationToken)                                                                    
    at Microsoft.EntityFrameworkCore.Storage.RelationalConnection.OpenAsync(CancellationToken cancellationToken, Boolean errorsExpected)                                                                            
    at Microsoft.EntityFrameworkCore.SqlServer.Storage.Internal.SqlServerDatabaseCreator.<>c__DisplayClass20_0.<<ExistsAsync>b__0>d.MoveNext()                                                                      
 --- End of stack trace from previous location ---                                                                                                                                                                  
    at Microsoft.EntityFrameworkCore.SqlServer.Storage.Internal.SqlServerDatabaseCreator.<>c__DisplayClass20_0.<<ExistsAsync>b__0>d.MoveNext()                                                                      
 --- End of stack trace from previous location ---                                                                                                                                                                  
    at Microsoft.EntityFrameworkCore.SqlServer.Storage.Internal.SqlServerExecutionStrategy.ExecuteAsync[TState,TResult](TState state, Func`4 operation, Func`4 verifySucceeded, CancellationToken cancellationToken)
    at Microsoft.EntityFrameworkCore.Storage.RelationalDatabaseCreator.EnsureCreatedAsync(CancellationToken cancellationToken)                                                                                      
    at Microsoft.EntityFrameworkCore.Storage.RelationalDatabaseCreator.EnsureCreatedAsync(CancellationToken cancellationToken)                                                                                      
    at FlowValet.BlazorServerApp.UI.Data.DbInitializer.Initialize(ApplicationDbContext context) in /src/FlowValet.BlazorServerApp.UI/Data/DbInitializer.cs:line 43}                                                 
 warn: Microsoft.AspNetCore.DataProtection.Repositories.FileSystemXmlRepository[60]                                                                                                                                 
       Storing keys in a directory '/root/.aspnet/DataProtection-Keys' that may not be persisted outside of the container. Protected data will be unavailable when container is destroyed.                          

My connetion string is

Server=db-mysql-fatmancluster-do-user-18828999-0.j.db.ondigitalocean.com,25060;Database=defaultdb;User=doadmin;Password=mypass;Connection Timeout=30;Pooling=False;SslMode=Required