diff --git a/lib/db.php b/lib/db.php
index 92e2baa..d7359f1 100644
--- a/lib/db.php
+++ b/lib/db.php
@@ -112,9 +112,12 @@ class Database {
         $this->pdo = $pdo;
         $this->log = $log;
         $this->log->d("Databaseobject successfull created");
-        if ($this->TableExists() === false) {
-            $this->log->n("No table requests found. Try to create table");
-            $this->createTable();
+        try {
+            if ($this->TableExists() === false) {
+                $this->createTable();
+            }
+        } catch (Exception $e) {
+            $this->log->e("Database exception: {$e->getMessage()}");
         }
 
     }
@@ -128,13 +131,20 @@ class Database {
          * eine Weiche anlegen?
          */
 
+        $this->log->d("Check if table requests exists");
         $stmt = "SELECT * FROM information_schema.tables WHERE
                     table_type = 'BASE TABLE' and
                     table_name = 'requests'";
-        $response = $this->pdo->query($stmt);
+        try {
+            $response = $this->pdo->query($stmt);
+        } catch (PDOException $e) {
+            throw new Exception($e->getMessage());
+        }
         if ($response->rowCount() === 0) {
+            $this->log->n("No table requests found");
             return false;
         }
+        $this->log->d("Table requests found");
         return true;
     }
 
@@ -144,6 +154,7 @@ class Database {
          * Erstellt die Tabelle Requests.
          */
 
+        $this->log->n("try to create table requests");
         $stmt = "CREATE TABLE IF NOT EXISTS requests (
                     id serial PRIMARY KEY,
                     nick varchar(80) NOT NULL UNIQUE,