System.ArgumentNullException: Value cannot be null.
Parameter name: path4
   at System.IO.Path.Combine(String path1, String path2, String path3, String path4)
   at IncidentReporter.API.Helpers.ExportTrainingCertificateHelper.ExportCertificate(TrainingCertificateDTO participant, String outputAbsoluteFilePath, Int32 orgId) in C:\GitLab-Runner\builds\27n6lYj0J\0\incident-reporter\incident-reporter-api\IncidentReporter\IncidentReporter.API\Helpers\ExportTrainingCertificateHelper.cs:line 26
   at IncidentReporter.API.Helpers.ExportTrainingCertificateHelper.ExportCertificatePDFAsByteArray(TrainingCertificateDTO participant, Int32 orgId, Int32 batchId, Int32 participantId) in C:\GitLab-Runner\builds\27n6lYj0J\0\incident-reporter\incident-reporter-api\IncidentReporter\IncidentReporter.API\Helpers\ExportTrainingCertificateHelper.cs:line 117
   at IncidentReporter.NotificationSender.DAL.Events.Notifier.SendNotificationToBatchParticipantsForCompletedStatus(Int64 batchId) in C:\GitLab-Runner\builds\27n6lYj0J\0\incident-reporter\incident-reporter-api\IncidentReporter\IncidentReporter.NotificationSender\DAL\Events\Notifier.cs:line 3426
   at IncidentReporter.NotificationSender.DAL.Events.EventHandler.HandleMessage(IMessage message) in C:\GitLab-Runner\builds\27n6lYj0J\0\incident-reporter\incident-reporter-api\IncidentReporter\IncidentReporter.NotificationSender\DAL\Events\EventHandler.cs:line 515


MySql.Data.MySqlClient.MySqlException (0x80004005): Table 'qa_stg_oqsha_4.notification_sounds' doesn't exist
   at MySql.Data.MySqlClient.MySqlStream.ReadPacket()
   at MySql.Data.MySqlClient.NativeDriver.GetResult(Int32& affectedRow, Int64& insertedId)
   at MySql.Data.MySqlClient.Driver.GetResult(Int32 statementId, Int32& affectedRows, Int64& insertedId)
   at MySql.Data.MySqlClient.Driver.NextResult(Int32 statementId, Boolean force)
   at MySql.Data.MySqlClient.MySqlDataReader.NextResult()
   at MySql.Data.MySqlClient.MySqlCommand.ExecuteReader(CommandBehavior behavior)
   at MySql.Data.MySqlClient.MySqlCommand.ExecuteDbDataReader(CommandBehavior behavior)
   at System.Data.Common.DbCommand.System.Data.IDbCommand.ExecuteReader(CommandBehavior behavior)
   at Dapper.SqlMapper.ExecuteReaderWithFlagsFallback(IDbCommand cmd, Boolean wasClosed, CommandBehavior behavior)
   at Dapper.SqlMapper.<QueryImpl>d__138`1.MoveNext()
   at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
   at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
   at Dapper.SqlMapper.Query[T](IDbConnection cnn, String sql, Object param, IDbTransaction transaction, Boolean buffered, Nullable`1 commandTimeout, Nullable`1 commandType)
   at IncidentReporter.DAL.Repositories.UsersRepo.GetUserById(Int32 userId) in C:\GitLab-Runner\builds\27n6lYj0J\0\incident-reporter\incident-reporter-api\IncidentReporter\IncidentReporter.DAL\Repositories\UsersRepo.cs:line 1066
   at IncidentReporter.NotificationSender.DAL.Events.Notifier.SendNotificationToBatchParticipants(String stringBatchParticipantIds, Int64 batchId) in C:\GitLab-Runner\builds\27n6lYj0J\0\incident-reporter\incident-reporter-api\IncidentReporter\IncidentReporter.NotificationSender\DAL\Events\Notifier.cs:line 3296
   at IncidentReporter.NotificationSender.DAL.Events.EventHandler.HandleMessage(IMessage message) in C:\GitLab-Runner\builds\27n6lYj0J\0\incident-reporter\incident-reporter-api\IncidentReporter\IncidentReporter.NotificationSender\DAL\Events\EventHandler.cs:line 520


MySql.Data.MySqlClient.MySqlException (0x80004005): Table 'qa_stg_oqsha_4.notification_sounds' doesn't exist
   at MySql.Data.MySqlClient.MySqlStream.ReadPacket()
   at MySql.Data.MySqlClient.NativeDriver.GetResult(Int32& affectedRow, Int64& insertedId)
   at MySql.Data.MySqlClient.Driver.GetResult(Int32 statementId, Int32& affectedRows, Int64& insertedId)
   at MySql.Data.MySqlClient.Driver.NextResult(Int32 statementId, Boolean force)
   at MySql.Data.MySqlClient.MySqlDataReader.NextResult()
   at MySql.Data.MySqlClient.MySqlCommand.ExecuteReader(CommandBehavior behavior)
   at MySql.Data.MySqlClient.MySqlCommand.ExecuteDbDataReader(CommandBehavior behavior)
   at System.Data.Common.DbCommand.System.Data.IDbCommand.ExecuteReader(CommandBehavior behavior)
   at Dapper.SqlMapper.ExecuteReaderWithFlagsFallback(IDbCommand cmd, Boolean wasClosed, CommandBehavior behavior)
   at Dapper.SqlMapper.<QueryImpl>d__138`1.MoveNext()
   at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
   at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
   at Dapper.SqlMapper.Query[T](IDbConnection cnn, String sql, Object param, IDbTransaction transaction, Boolean buffered, Nullable`1 commandTimeout, Nullable`1 commandType)
   at IncidentReporter.DAL.Repositories.UsersRepo.GetUserById(Int32 userId) in C:\GitLab-Runner\builds\27n6lYj0J\0\incident-reporter\incident-reporter-api\IncidentReporter\IncidentReporter.DAL\Repositories\UsersRepo.cs:line 1066
   at IncidentReporter.NotificationSender.DAL.Events.Notifier.SendNotificationToBatchParticipantsForCompletedStatus(Int64 batchId) in C:\GitLab-Runner\builds\27n6lYj0J\0\incident-reporter\incident-reporter-api\IncidentReporter\IncidentReporter.NotificationSender\DAL\Events\Notifier.cs:line 3466
   at IncidentReporter.NotificationSender.DAL.Events.EventHandler.HandleMessage(IMessage message) in C:\GitLab-Runner\builds\27n6lYj0J\0\incident-reporter\incident-reporter-api\IncidentReporter\IncidentReporter.NotificationSender\DAL\Events\EventHandler.cs:line 532