Attempt to handle MYSQL error fetching assets

OpenSim/Framework/Data.MySQL/MySQLAssetData.cs

@@ -76,6 +76,8 @@ namespace OpenSim.Framework.Data.MySQL
                         _dbConnection.Connection);
                 MySqlParameter p = cmd.Parameters.Add("?id", MySqlDbType.Binary, 16);
                 p.Value = assetID.GetBytes();
+                try
+                {
                     using (MySqlDataReader dbReader = cmd.ExecuteReader(CommandBehavior.SingleRow))
                     {
                         if (dbReader.Read())
@@ -91,6 +93,11 @@ namespace OpenSim.Framework.Data.MySQL
                         }
                     }
                 }
+                catch (Exception)
+                {
+                    MainLog.Instance.Warn("ASSETS", "MySql failure fetching asset");
+                }   
+            }
             return asset;
         }