diff --git a/DataStorage/Database/Connection/MysqlConnection.php b/DataStorage/Database/Connection/MysqlConnection.php
index daab08ced..7788b320e 100755
--- a/DataStorage/Database/Connection/MysqlConnection.php
+++ b/DataStorage/Database/Connection/MysqlConnection.php
@@ -60,6 +60,10 @@ final class MysqlConnection extends ConnectionAbstract
      */
     public function connect(array $dbdata = null) : void
     {
+        if ($this->status === DatabaseStatus::OK) {
+            return;
+        }
+
         $this->dbdata = $dbdata ?? $this->dbdata;
 
         if (!isset($this->dbdata['db'], $this->dbdata['host'], $this->dbdata['port'], $this->dbdata['database'], $this->dbdata['login'], $this->dbdata['password'])
diff --git a/DataStorage/Database/Connection/PostgresConnection.php b/DataStorage/Database/Connection/PostgresConnection.php
index 741d2ac73..a04a93bfe 100755
--- a/DataStorage/Database/Connection/PostgresConnection.php
+++ b/DataStorage/Database/Connection/PostgresConnection.php
@@ -60,6 +60,10 @@ final class PostgresConnection extends ConnectionAbstract
      */
     public function connect(array $dbdata = null) : void
     {
+        if ($this->status === DatabaseStatus::OK) {
+            return;
+        }
+
         $this->dbdata = $dbdata ?? $this->dbdata;
 
         if (!isset($this->dbdata['db'], $this->dbdata['host'], $this->dbdata['port'], $this->dbdata['database'], $this->dbdata['login'], $this->dbdata['password'])
diff --git a/DataStorage/Database/Connection/SQLiteConnection.php b/DataStorage/Database/Connection/SQLiteConnection.php
index 7bbe77e36..0fa2354c5 100755
--- a/DataStorage/Database/Connection/SQLiteConnection.php
+++ b/DataStorage/Database/Connection/SQLiteConnection.php
@@ -68,6 +68,10 @@ final class SQLiteConnection extends ConnectionAbstract
      */
     public function connect(array $dbdata = null) : void
     {
+        if ($this->status === DatabaseStatus::OK) {
+            return;
+        }
+
         $this->dbdata = $dbdata ?? $this->dbdata;
 
         if (!isset($this->dbdata['db'], $this->dbdata['database'])
diff --git a/DataStorage/Database/Connection/SqlServerConnection.php b/DataStorage/Database/Connection/SqlServerConnection.php
index 1f6a525fd..f76a92173 100755
--- a/DataStorage/Database/Connection/SqlServerConnection.php
+++ b/DataStorage/Database/Connection/SqlServerConnection.php
@@ -60,6 +60,10 @@ final class SqlServerConnection extends ConnectionAbstract
      */
     public function connect(array $dbdata = null) : void
     {
+        if ($this->status === DatabaseStatus::OK) {
+            return;
+        }
+
         $this->dbdata = $dbdata ?? $this->dbdata;
 
         if (!isset($this->dbdata['db'], $this->dbdata['host'], $this->dbdata['port'], $this->dbdata['database'], $this->dbdata['login'], $this->dbdata['password'])
diff --git a/Message/RequestAbstract.php b/Message/RequestAbstract.php
index 8878b9de9..ee15599bc 100755
--- a/Message/RequestAbstract.php
+++ b/Message/RequestAbstract.php
@@ -257,7 +257,7 @@ abstract class RequestAbstract implements MessageInterface
         }
 
         /* @phpstan-ignore-next-line */
-        $list = \explode($delim, $this->data[$key]);
+        $list = \explode($delim, (string) $this->data[$key]);
         if ($list === false) {
             return []; // @codeCoverageIgnore
         }