diff --git a/htdocs/admin/dolistore/class/dolistore.class.php b/htdocs/admin/dolistore/class/dolistore.class.php
index 07dbec4b902..539fe3bbd97 100644
--- a/htdocs/admin/dolistore/class/dolistore.class.php
+++ b/htdocs/admin/dolistore/class/dolistore.class.php
@@ -43,18 +43,18 @@ class Dolistore
 	/**
 	 * Constructor
 	 */
-	function __construct()
+	function __construct($debug=false)
 	{
 		global $conf, $langs;
 
 		$this->url       = DOL_URL_ROOT.'/admin/modules.php?mode=marketplace';
 		$this->shop_url  = 'https://www.dolistore.com/index.php?controller=product&id_product=';
 		$this->vat_rate  = 1.2; // 20% de TVA
-		$this->debug_api = false;
+		$this->debug_api = $debug;
 
 		$langtmp    = explode('_', $langs->defaultlang);
 		$lang       = $langtmp[0];
-		$lang_array = array('en'=>0, 'fr'=>1, 'es'=>2, 'it'=>3, 'de'=>4);	// Into table ps_lang of Prestashop - 1
+		$lang_array = array('en'=>1, 'fr'=>2, 'es'=>3, 'it'=>4, 'de'=>5);	// Into table ps_lang of Prestashop - 1
 		if (! in_array($lang, array_keys($lang_array))) $lang = 'en';
 		$this->lang = $lang_array[$lang];
 	}
@@ -81,8 +81,9 @@ class Dolistore
 		}
 
 		try {
-			$this->api = new PrestaShopWebservice($conf->global->MAIN_MODULE_DOLISTORE_API_SRV,
-				$conf->global->MAIN_MODULE_DOLISTORE_API_KEY, $this->debug_api);
+			$this->api = new PrestaShopWebservice($conf->global->MAIN_MODULE_DOLISTORE_API_SRV, $conf->global->MAIN_MODULE_DOLISTORE_API_KEY, $this->debug_api);
+			dol_syslog("Call API with MAIN_MODULE_DOLISTORE_API_SRV = ".$conf->global->MAIN_MODULE_DOLISTORE_API_SRV);
+			// $conf->global->MAIN_MODULE_DOLISTORE_API_KEY is for the login of basic auth. There is no password as it is public data.
 
 			// Here we set the option array for the Webservice : we want products resources
 			$opt             = array();
@@ -92,7 +93,13 @@ class Dolistore
 			if ($this->search != '') {
 				$opt2        = array();
 				$opt2['url'] = $conf->global->MAIN_MODULE_DOLISTORE_API_SRV.'/api/search?query='.$this->search.'&language='.$this->lang;
+
 				// Call
+				var_dump($this->api);
+
+				dol_syslog("Call API with opt = ".var_export($opt, true));
+				dol_syslog("Call API with opt2 = ".var_export($opt2, true));
+
 				$xml         = $this->api->get($opt2);
 				$products    = array();
 				foreach ($xml->products->children() as $product) {
@@ -117,7 +124,10 @@ class Dolistore
 			$opt['limit']          = "$this->start,$this->end";
 			// $opt['filter[id]'] contais list of product id that are result of search
 
+
 			// Call API to get the detail
+			dol_syslog("Call API with opt = ".var_export($opt, true));
+			dol_syslog("Call API with opt2 = ".var_export($opt2, true));
 			$xml                   = $this->api->get($opt);
 			$this->products        = $xml->products->children();
 
@@ -135,7 +145,11 @@ class Dolistore
 			$trace = $e->getTrace();
 			if ($trace[0]['args'][0] == 404) die('Bad ID');
 			else if ($trace[0]['args'][0] == 401) die('Bad auth key');
-			else die('Can not access to '.$conf->global->MAIN_MODULE_DOLISTORE_API_SRV);
+			else
+			{
+				print 'Can not access to '.$conf->global->MAIN_MODULE_DOLISTORE_API_SRV.'<br>';
+				print $e->getMessage();
+			}
 		}
 	}
 
diff --git a/htdocs/admin/modules.php b/htdocs/admin/modules.php
index 588bdb856db..5ba261b619e 100644
--- a/htdocs/admin/modules.php
+++ b/htdocs/admin/modules.php
@@ -55,7 +55,7 @@ $options['categorie'] = ((GETPOST('categorie', 'int')?GETPOST('categorie', 'int'
 $options['start']     = ((GETPOST('start', 'int')?GETPOST('start', 'int'):0) + 0);
 $options['end']       = ((GETPOST('end', 'int')?GETPOST('end', 'int'):0) + 0);
 $options['search']    = GETPOST('search_keyword', 'alpha');
-$dolistore            = new Dolistore();
+$dolistore            = new Dolistore(false);
 
 
 if (! $user->admin)