diff --git a/htdocs/public/payment/paymentko.php b/htdocs/public/payment/paymentko.php
index cd220a5764f..783493f375c 100644
--- a/htdocs/public/payment/paymentko.php
+++ b/htdocs/public/payment/paymentko.php
@@ -141,8 +141,13 @@ if (! empty($_SESSION['ipaddress']))      // To avoid to make action twice
         $sendemail = $conf->global->ONLINE_PAYMENT_SENDEMAIL;
     }
 
+    // Send warning of error to administrator
     if ($sendemail)
     {
+    	$companylangs = new Translate('', $conf);
+    	$companylangs->setDefaultLang($mysoc->default_lang);
+    	$companylangs->loadLangs(array('main','members','bills','paypal','paybox'));
+
         $from=$conf->global->MAILING_EMAIL_FROM;
         $sendto=$sendemail;
 
@@ -160,16 +165,21 @@ if (! empty($_SESSION['ipaddress']))      // To avoid to make action twice
     	else $appli.=" ".DOL_VERSION;
 
     	$urlback=$_SERVER["REQUEST_URI"];
-    	$topic='['.$appli.'] '.$langs->transnoentitiesnoconv("NewOnlinePaymentFailed");
+    	$topic='['.$appli.'] '.$companylangs->transnoentitiesnoconv("NewOnlinePaymentFailed");
     	$content="";
-    	$content.=$langs->transnoentitiesnoconv("ValidationOfOnlinePaymentFailed")."\n";
-    	$content.="\n";
-    	$content.=$langs->transnoentitiesnoconv("TechnicalInformation").":\n";
-    	$content.=$langs->transnoentitiesnoconv("OnlinePaymentSystem").': '.$paymentmethod."<br>\n";
-    	$content.=$langs->transnoentitiesnoconv("ReturnURLAfterPayment").': '.$urlback."\n";
+    	$content.='<font color="orange">'.$companylangs->transnoentitiesnoconv("ValidationOfOnlinePaymentFailed")."</font>\n";
+
+    	$content.="<br><br>\n";
+    	$content.='<u>'.$companylangs->transnoentitiesnoconv("TechnicalInformation").":</u><br>\n";
+    	$content.=$companylangs->transnoentitiesnoconv("OnlinePaymentSystem").': <strong>'.$paymentmethod."</strong><br>\n";
+    	$content.=$companylangs->transnoentitiesnoconv("ReturnURLAfterPayment").': '.$urlback."<br>\n";
+    	$content.="<br>\n";
     	$content.="tag=".$fulltag."\ntoken=".$onlinetoken." paymentType=".$paymentType." currencycodeType=".$currencyCodeType." payerId=".$payerID." ipaddress=".$ipaddress." FinalPaymentAmt=".$FinalPaymentAmt;
+
+    	$ishtml=dol_textishtml($content);	// May contain urls
+
     	require_once DOL_DOCUMENT_ROOT.'/core/class/CMailFile.class.php';
-    	$mailfile = new CMailFile($topic, $sendto, $from, $content);
+    	$mailfile = new CMailFile($topic, $sendto, $from, $content, array(), array(), array(), '', '', 0, $ishtml);
 
     	$result=$mailfile->sendfile();
     	if ($result)
diff --git a/htdocs/public/payment/paymentok.php b/htdocs/public/payment/paymentok.php
index 3ad71487dfc..e48fc014749 100644
--- a/htdocs/public/payment/paymentok.php
+++ b/htdocs/public/payment/paymentok.php
@@ -876,7 +876,7 @@ else
     elseif ($paymentmethod == 'paybox' && ! empty($conf->global->PAYBOX_PAYONLINE_SENDEMAIL)) $sendemail=$conf->global->PAYBOX_PAYONLINE_SENDEMAIL;
     elseif ($paymentmethod == 'stripe' && ! empty($conf->global->STRIPE_PAYONLINE_SENDEMAIL)) $sendemail=$conf->global->STRIPE_PAYONLINE_SENDEMAIL;
 
-    // Send an email
+    // Send warning of error to administrator
     if ($sendemail)
     {
     	$companylangs = new Translate('', $conf);
@@ -908,7 +908,7 @@ else
         $content="";
         $content.='<font color="orange">'.$companylangs->transnoentitiesnoconv("PaymentSystemConfirmPaymentPageWasCalledButFailed")."</font>\n";
 
-        $content.="<br>\n";
+        $content.="<br><br>\n";
         $content.='<u>'.$companylangs->transnoentitiesnoconv("TechnicalInformation").":</u><br>\n";
         $content.=$companylangs->transnoentitiesnoconv("OnlinePaymentSystem").': <strong>'.$paymentmethod."</strong><br>\n";
         $content.=$companylangs->transnoentitiesnoconv("ReturnURLAfterPayment").': '.$urlback."<br>\n";