change to fallback server list

boot.php

@@ -83,7 +83,7 @@ $DIRECTORY_FALLBACK_SERVERS = array(
 	'https://zothub.com', 
 	'https://hubzilla.site',
 	'https://red.zottel.red',
-	'https://gravizot.de',
+	'https://hub.pixelbits.de',
 	'https://my.federated.social',
 	'https://hubzilla.nl'
 );
@@ -1324,7 +1324,7 @@ function check_config(&$a) {
 	 *
 	 */
 
-	$r = q("SELECT * FROM `addon` WHERE `installed` = 1");
+	$r = q("SELECT * FROM addon WHERE installed = 1");
 	if($r)
 		$installed = $r;
 	else