diff --git a/lib/classes/database/class.Database.php b/lib/classes/database/class.Database.php
index 7f6c7d46..350e71e3 100644
--- a/lib/classes/database/class.Database.php
+++ b/lib/classes/database/class.Database.php
@@ -71,7 +71,7 @@ class Database {
 		try {
 			$stmt->execute($params);
 		} catch (PDOException $e) {
-			self::_showerror($e, $showerror, $json_response);
+			self::_showerror($e, $showerror, $json_response, $stmt);
 		}
 	}
 
@@ -309,7 +309,7 @@ class Database {
 	 * @param PDOException $error
 	 * @param bool $showerror if set to false, the error will be logged but we go on
 	 */
-	private static function _showerror($error, $showerror = true, $json_response = false) {
+	private static function _showerror($error, $showerror = true, $json_response = false, PDOStatement $stmt = null) {
 		global $userinfo, $theme, $linker;
 
 		// include userdata.inc.php
@@ -374,6 +374,8 @@ class Database {
 		if ($showerror) {
 			if (empty($sql['debug'])) {
 				$error_trace = '';
+			} elseif (!is_null($stmt)) {
+				$error_trace .= "<br><br>".$stmt->queryString;
 			}
 
 			// fallback
diff --git a/lib/functions/froxlor/function.getIpPortCombinations.php b/lib/functions/froxlor/function.getIpPortCombinations.php
index f0043a74..1a0c75f6 100644
--- a/lib/functions/froxlor/function.getIpPortCombinations.php
+++ b/lib/functions/froxlor/function.getIpPortCombinations.php
@@ -64,5 +64,6 @@ function getIpPortCombinations($ssl = false) {
 }
 
 function getSslIpPortCombinations() {
-	return getIpPortCombinations(true);
+	global $lng;
+	return array('' => $lng['panel']['none_value']) + getIpPortCombinations(true);
 }
diff --git a/lib/functions/settings/function.storeSettingDefaultIp.php b/lib/functions/settings/function.storeSettingDefaultIp.php
index 5a8994c2..a3ca6b1f 100644
--- a/lib/functions/settings/function.storeSettingDefaultIp.php
+++ b/lib/functions/settings/function.storeSettingDefaultIp.php
@@ -95,23 +95,35 @@ function storeSettingDefaultSslIp($fieldname, $fielddata, $newfieldvalue) {
 		if (count($ids) > 0) {
 			$defaultips_new = explode(',', $newfieldvalue);
 
+			if (!empty($defaultips_old) && !empty($newfieldvalue))
+			{
+				$in_value = $defaultips_old . ", " . $newfieldvalue;
+			} elseif (!empty($defaultips_old) && empty($newfieldvalue))
+			{
+				$in_value = $defaultips_old;
+			} else {
+				$in_value = $newfieldvalue;
+			}
+
 			// Delete the existing mappings linking to default IPs
 			$del_stmt = Database::prepare("
 					DELETE FROM `" . TABLE_DOMAINTOIP . "`
 					WHERE `id_domain` IN (" . implode(', ', $ids) . ")
-					AND `id_ipandports` IN (" . $defaultips_old . ", " . $newfieldvalue . ")
+					AND `id_ipandports` IN (" . $in_value . ")
 			");
 			Database::pexecute($del_stmt);
 
-			// Insert the new mappings
-			$ins_stmt = Database::prepare("
-				INSERT INTO `" . TABLE_DOMAINTOIP . "`
-				SET `id_domain` = :domainid, `id_ipandports` = :ipandportid
-			");
+			if (count($defaultips_new) > 0) {
+				// Insert the new mappings
+				$ins_stmt = Database::prepare("
+					INSERT INTO `" . TABLE_DOMAINTOIP . "`
+					SET `id_domain` = :domainid, `id_ipandports` = :ipandportid
+				");
 
-			foreach ($ids as $id) {
-				foreach ($defaultips_new as $defaultip_new) {
-					Database::pexecute($ins_stmt, array('domainid' => $id, 'ipandportid' => $defaultip_new));
+				foreach ($ids as $id) {
+					foreach ($defaultips_new as $defaultip_new) {
+						Database::pexecute($ins_stmt, array('domainid' => $id, 'ipandportid' => $defaultip_new));
+					}
 				}
 			}
 		}
diff --git a/lng/english.lng.php b/lng/english.lng.php
index f9ed0d54..8adc8a40 100644
--- a/lng/english.lng.php
+++ b/lng/english.lng.php
@@ -2119,3 +2119,4 @@ $lng['admin']['plans']['use_plan'] = 'Apply plan';
 $lng['question']['plan_reallydelete'] = 'Do you really want to delete the hosting plan %s?';
 $lng['admin']['notryfiles']['title'] = 'No autogenerated try_files';
 $lng['admin']['notryfiles']['description'] = 'Say yes here if you want to specify a custom try_files directive in specialsettings (needed for some wordpress plugins for example).';
+$lng['panel']['none_value'] = 'None';
diff --git a/lng/german.lng.php b/lng/german.lng.php
index a4567f2a..888303b1 100644
--- a/lng/german.lng.php
+++ b/lng/german.lng.php
@@ -1769,3 +1769,4 @@ $lng['admin']['plans']['use_plan'] = 'Plan übernehmen';
 $lng['question']['plan_reallydelete'] = 'Wollen Sie den Hosting-Plan "%s" wirklich löschen?';
 $lng['admin']['notryfiles']['title'] = 'Keine generierte try_files Anweisung';
 $lng['admin']['notryfiles']['description'] = 'Wähle "Ja", wenn eine eigene try_files Direktive in den "eigenen Vhost Einstellungen" angegeben werden soll (z.B. nötig für manche Wordpress Plugins).';
+$lng['panel']['none_value'] = 'Keine';