diff --git a/documentation/assets/style.css b/documentation/assets/style.css
index ebf2035..2662ff9 100644
--- a/documentation/assets/style.css
+++ b/documentation/assets/style.css
@@ -53,7 +53,8 @@ a:hover {
 .navbar {
 	border-radius: 0;
 	clear: both;
-	margin-bottom: 0
+	margin-bottom: 0;
+    overflow-y: auto;
 }
 
 .navbar-default {
diff --git a/qrcode/config/config.php b/qrcode/config/config.php
index 8312259..cea86f7 100755
--- a/qrcode/config/config.php
+++ b/qrcode/config/config.php
@@ -30,5 +30,6 @@ function getDbInstance() {
         'password' => DATABASE_PASSWORD,
         'db'=> DATABASE_NAME,
         'port' => DATABASE_PORT,
+        'prefix' => DATABASE_PREFIX,
         'charset' => DATABASE_CHARSET));
 }
diff --git a/qrcode/config/environment.php b/qrcode/config/environment.php
index a5064cf..9980cdd 100644
--- a/qrcode/config/environment.php
+++ b/qrcode/config/environment.php
@@ -12,6 +12,9 @@ if(is_string($docker_cid)) {
     define('DATABASE_NAME', Getenv('DATABASE_NAME'));
     define('DATABASE_USER', Getenv('DATABASE_USER'));
     define('DATABASE_PASSWORD', Getenv('DATABASE_PASSWORD'));
+    // This must have a trailing underscore.
+    // Example: qr_
+    define('DATABASE_PREFIX', Getenv('DATABASE_PREFIX'));
     define('DATABASE_CHARSET', Getenv('DATABASE_CHARSET'));
 } else {
     define('DATABASE_HOST', "localhost");
@@ -19,6 +22,9 @@ if(is_string($docker_cid)) {
     define('DATABASE_NAME', "qrcode");
     define('DATABASE_USER', "root");
     define('DATABASE_PASSWORD', "root");
+    // This must have a trailing underscore.
+    // Example: qr_
+    define('DATABASE_PREFIX', "");
     define('DATABASE_CHARSET', "utf8");
 }
 /*
diff --git a/qrcode/index.php b/qrcode/index.php
index edef321..6eb8455 100644
--- a/qrcode/index.php
+++ b/qrcode/index.php
@@ -25,12 +25,12 @@ $numQrcode_static = $db->getValue ("static_qrcodes", "count(*)");
 $total = $numQrcode_dynamic + $numQrcode_static;
 
 //Get Total scan
-$numScan = $db->query("SELECT sum(scan) FROM dynamic_qrcodes");
+$numScan = $db->query("SELECT sum(scan) FROM ".DATABASE_PREFIX."dynamic_qrcodes");
 
                                                 /* CREATED CHART *///I initialize the variables that will contain the daily values to 0 otherwise in the foreach loop they will be reset every time
 
 //Get the number of DYNAMIC qr code created in 7 days and total scan
-$createdQrcode_dynamic = $db->query("select `created_at`, `scan` from dynamic_qrcodes where `created_at` > curdate()-7;");
+$createdQrcode_dynamic = $db->query("select `created_at`, `scan` from ".DATABASE_PREFIX."dynamic_qrcodes where `created_at` > curdate()-7;");
 
 $dynamic_today = $dynamic_oneday = $dynamic_twoday = $dynamic_threeday = $dynamic_fourday = $dynamic_fiveday = $dynamic_sixday  = 0;
 $scan_today = $scan_oneday = $scan_twoday = $scan_threeday = $scan_fourday = $scan_fiveday = $scan_sixday = 0;
@@ -49,7 +49,7 @@ foreach ($createdQrcode_dynamic as $row) {
 
                                                 /* SCAN CHART */
 //Get the number of STATIC qr code created in 7 days
-$createdQrcode_static = $db->query("select `created_at` from static_qrcodes where `created_at` > curdate()-7;");
+$createdQrcode_static = $db->query("select `created_at` from ".DATABASE_PREFIX."static_qrcodes where `created_at` > curdate()-7;");
 
 $static_today = $static_oneday = $static_twoday = $static_threeday = $static_fourday = $static_fiveday = $static_sixday = 0;
 foreach ($createdQrcode_static as $row) {
diff --git a/qrcode/install/includes/database_class.php b/qrcode/install/includes/database_class.php
index e58f3b2..3d191eb 100644
--- a/qrcode/install/includes/database_class.php
+++ b/qrcode/install/includes/database_class.php
@@ -31,7 +31,7 @@ class Database {
 	}
 
 	// Function to create the tables and fill them with the default data
-	function create_tables($db_host, $db_user, $db_password, $db_name, $db_port)
+	function create_tables($db_host, $db_user, $db_password, $db_name, $db_port, $db_prefix)
 	{
 		// Connect to the database
         $mysqli = new mysqli($db_host,$db_user,$db_password,$db_name, $db_port);
@@ -43,6 +43,9 @@ class Database {
 		// Open the default SQL file
 		$query = file_get_contents('sql/sample_data.sql');
 
+        // Run prefix regex; if none is set, then it will replace #prefix# with an empty string.
+        $query = preg_replace('/#prefix#/', $db_prefix, $query);
+
 		// Execute a multi query
 		$mysqli->multi_query($query);
 
diff --git a/qrcode/install/setup.php b/qrcode/install/setup.php
index f16f6ee..4439840 100644
--- a/qrcode/install/setup.php
+++ b/qrcode/install/setup.php
@@ -51,7 +51,7 @@ if (!$database->create_database(DATABASE_HOST, DATABASE_USER, DATABASE_PASSWORD,
     echo "The database could not be created, please check your database credentials!";
     die();
 }
-else if (!$database->create_tables(DATABASE_HOST, DATABASE_USER, DATABASE_PASSWORD, DATABASE_NAME, DATABASE_PORT)) {
+else if (!$database->create_tables(DATABASE_HOST, DATABASE_USER, DATABASE_PASSWORD, DATABASE_NAME, DATABASE_PORT, DATABASE_PREFIX)) {
     echo "The database tables could not be created, please check your database credentials!";
     die();
 }
diff --git a/qrcode/install/sql/sample_data.sql b/qrcode/install/sql/sample_data.sql
index 83a1f3a..72d6c87 100644
--- a/qrcode/install/sql/sample_data.sql
+++ b/qrcode/install/sql/sample_data.sql
@@ -26,7 +26,7 @@ SET time_zone = "+00:00";
 -- Struttura della tabella `admin_accounts`
 --
 
-CREATE TABLE IF NOT EXISTS `admin_accounts` (
+CREATE TABLE IF NOT EXISTS `#prefix#admin_accounts` (
   `id` int(25) NOT NULL AUTO_INCREMENT,
   `user_name` varchar(50) NOT NULL,
   `password` varchar(255) NOT NULL,
@@ -42,7 +42,7 @@ CREATE TABLE IF NOT EXISTS `admin_accounts` (
 -- Dump dei dati per la tabella `admin_accounts`
 --
 
-INSERT INTO `admin_accounts` (`id`, `user_name`, `password`, `series_id`, `remember_token`, `expires`, `admin_type`) VALUES
+INSERT INTO `#prefix#admin_accounts` (`id`, `user_name`, `password`, `series_id`, `remember_token`, `expires`, `admin_type`) VALUES
 (1, 'superadmin', '$2y$10$xpZc5KC.aU2XHkcqhuZGFuAnqmtL4Unt8MysOyylceq.19XIyoZpG', 'F5V8N81eQKYJbiyj', '$2y$10$MRWA31CVjAmtrojbm4r18ezDfqC3msAxzJ1ZdbyoRpD5pxF3IdJG6', '2020-09-30 16:19:08', 'super');
 
 -- --------------------------------------------------------
@@ -51,7 +51,7 @@ INSERT INTO `admin_accounts` (`id`, `user_name`, `password`, `series_id`, `remem
 -- Struttura della tabella `dynamic_qrcodes`
 --
 
-CREATE TABLE IF NOT EXISTS `dynamic_qrcodes` (
+CREATE TABLE IF NOT EXISTS `#prefix#dynamic_qrcodes` (
   `id` int(10) NOT NULL AUTO_INCREMENT,
   `filename` varchar(45) NOT NULL,
   `format` varchar(45) DEFAULT NULL,
@@ -71,7 +71,7 @@ CREATE TABLE IF NOT EXISTS `dynamic_qrcodes` (
 -- Dump dei dati per la tabella `dynamic_qrcodes`
 --
 
-INSERT INTO `dynamic_qrcodes` (`id`, `filename`, `format`, `identifier`, `link`, `qrcode`, `scan`, `state`, `created_by`, `created_at`, `updated_by`, `updated_at`) VALUES
+INSERT INTO `#prefix#dynamic_qrcodes` (`id`, `filename`, `format`, `identifier`, `link`, `qrcode`, `scan`, `state`, `created_by`, `created_at`, `updated_by`, `updated_at`) VALUES
 (1, 'Facebook', 'png', 'rcCeC', 'https://facebook.com', 'Facebook.png', 0, 'enable', 0, '2020-09-01 15:35:13', 0, NULL),
 (2, 'Amazon', 'png', 'F7GOY6', 'https://amazon.com', 'Amazon.png', 0, 'enable', 0, '2020-09-01 15:40:34', 0, NULL),
 (3, 'Youtube', 'png', '8dK5Nd', 'https://youtube.com', 'Youtube.png', 0, 'enable', 0, '2020-09-01 15:41:43', 0, NULL),
@@ -85,7 +85,7 @@ INSERT INTO `dynamic_qrcodes` (`id`, `filename`, `format`, `identifier`, `link`,
 -- Struttura della tabella `static_qrcodes`
 --
 
-CREATE TABLE IF NOT EXISTS `static_qrcodes` (
+CREATE TABLE IF NOT EXISTS `#prefix#static_qrcodes` (
   `id` int(10) NOT NULL AUTO_INCREMENT,
   `filename` varchar(45) CHARACTER SET utf8 NOT NULL,
   `format` varchar(45) DEFAULT NULL,
@@ -104,7 +104,7 @@ CREATE TABLE IF NOT EXISTS `static_qrcodes` (
 -- Dump dei dati per la tabella `static_qrcodes`
 --
 
-INSERT INTO `static_qrcodes` (`id`, `filename`, `format`, `type`, `content`, `qrcode`, `state`, `created_by`, `created_at`, `updated_by`, `updated_at`) VALUES
+INSERT INTO `#prefix#static_qrcodes` (`id`, `filename`, `format`, `type`, `content`, `qrcode`, `state`, `created_by`, `created_at`, `updated_by`, `updated_at`) VALUES
 (1, 'Text qr code', 'png', 'text', '<strong>Text:</strong> My first text', 'Text qr code.png', 'enable', 0, '2020-08-24 08:41:31', 0, NULL),
 (2, 'Email', 'jpg', 'email', '<strong>Email:</strong> assistance@domain.com<br><strong>Subject:</strong> Assistance request<br><strong>Message:</strong> Regarding my order N ° ... I require assistance', 'Email.jpg', 'enable', 0, '2020-08-24 08:44:13', 0, NULL),
 (3, 'Call me', 'png', 'phone', '<strong>Phone number:</strong> 12563776756', 'Call me.png', 'enable', 0, '2020-08-24 08:45:10', 0, NULL),
diff --git a/qrcode/lib/Dynamic_Qrcode/Dynamic_Qrcode.php b/qrcode/lib/Dynamic_Qrcode/Dynamic_Qrcode.php
index 3c4f3cb..6b45630 100644
--- a/qrcode/lib/Dynamic_Qrcode/Dynamic_Qrcode.php
+++ b/qrcode/lib/Dynamic_Qrcode/Dynamic_Qrcode.php
@@ -149,7 +149,7 @@ class Dynamic_Qrcode
         $dynamic_id = htmlspecialchars($_GET['dynamic_id'], ENT_QUOTES, 'UTF-8');           // get dynamic id
         $old_filename = htmlspecialchars($_GET['filename'], ENT_QUOTES, 'UTF-8');           // get filename
         
-        $query = $db->query("SELECT format FROM dynamic_qrcodes WHERE id=$dynamic_id");     // get format
+        $query = $db->query("SELECT format FROM ".DATABASE_PREFIX."dynamic_qrcodes WHERE id=$dynamic_id");     // get format
         $format = $query[0]['format'];
         
         $data_to_db = $this->collect();
@@ -190,7 +190,7 @@ class Dynamic_Qrcode
         
         $db = getDbInstance();
         
-        $query = $db->query("SELECT format FROM dynamic_qrcodes WHERE id=$dynamic_id");     
+        $query = $db->query("SELECT format FROM ".DATABASE_PREFIX."dynamic_qrcodes WHERE id=$dynamic_id");     
         $format = $query[0]['format'];
         
         $db->where('id', $dynamic_id);
diff --git a/qrcode/lib/MysqliDb/MysqliDb.php b/qrcode/lib/MysqliDb/MysqliDb.php
index d44dca7..419179a 100644
--- a/qrcode/lib/MysqliDb/MysqliDb.php
+++ b/qrcode/lib/MysqliDb/MysqliDb.php
@@ -28,7 +28,7 @@ class MysqliDb
      *
      * @var string
      */
-    public static $prefix = '';
+    public static $prefix = DATABASE_PREFIX;
 
     /**
      * MySQLi instances
diff --git a/qrcode/lib/Static_Qrcode/Static_Qrcode.php b/qrcode/lib/Static_Qrcode/Static_Qrcode.php
index c87bf46..6cf1f60 100644
--- a/qrcode/lib/Static_Qrcode/Static_Qrcode.php
+++ b/qrcode/lib/Static_Qrcode/Static_Qrcode.php
@@ -445,7 +445,7 @@ class Static_Qrcode
         $static_id = htmlspecialchars($_GET['static_id'], ENT_QUOTES, 'UTF-8');
         $old_filename = htmlspecialchars($_GET['filename'], ENT_QUOTES, 'UTF-8');
         
-        $query = $db->query("SELECT format FROM static_qrcodes WHERE id=$static_id");     // get format
+        $query = $db->query("SELECT format FROM ".DATABASE_PREFIX."static_qrcodes WHERE id=$static_id");     // get format
         $format = $query[0]['format'];
         
         $data_to_db = $this->collect();
@@ -487,7 +487,7 @@ class Static_Qrcode
         
         $db = getDbInstance();
         
-        $query = $db->query("SELECT format FROM static_qrcodes WHERE id=$static_id");     // get format
+        $query = $db->query("SELECT format FROM ".DATABASE_PREFIX."static_qrcodes WHERE id=$static_id");     // get format
         $format = $query[0]['format'];
         
         $db->where('id', $static_id);