diff --git a/Helper/Data.php b/Helper/Data.php
index d85b5fc..042a961 100755
--- a/Helper/Data.php
+++ b/Helper/Data.php
@@ -104,7 +104,7 @@ public function getAllowedIps($separator=false)
     {
         $allowedIps = $this->getConfig('dev/quickdevbar/allow_ips');
         if($allowedIps) {
-            $allowedIps = preg_split('#\s*,\s*#', $allowedIps, null, PREG_SPLIT_NO_EMPTY);
+            $allowedIps = preg_split('#\s*,\s*#', $allowedIps, -1, PREG_SPLIT_NO_EMPTY);
         } else {
             $allowedIps = array();
         }
diff --git a/README.md b/README.md
index c10e217..f264797 100644
--- a/README.md
+++ b/README.md
@@ -88,10 +88,10 @@ php bin/magento cache:flush
 
 The toolbar is displayed by default if your web server is on your local development environment.
 
-The configuration is in  Stores/Configuration/Advanced/Developer/Quick dev bar configuration
-![](doc/images/qdb_screen_config_ok.png)
+The configuration is in  Stores/Configuration/Advanced/Developer/Quick dev bar configuration.
 
-If you do not see the toolbar you should either force activation by setting the select "Activate" to "Yes" or fill your IP in the field "Allowed IPs" or fill a matching pattern of you user-agent in the field "Allowed user-agent pattern" 
+
+If you do not see the toolbar you should either force activation by filling your IP in the field "Allowed IPs" and fill a matching pattern of you user-agent in the field "Allowed user-agent pattern" if it's needed.
 ![](doc/images/qdb_screen_config_ko.png)
 
 # Documentation
diff --git a/doc/images/qdb_screen_config_ok.png b/doc/images/qdb_screen_config_ok.png
deleted file mode 100644
index 2ed5a39..0000000
Binary files a/doc/images/qdb_screen_config_ok.png and /dev/null differ