Issue: Server Errors and Missing Wiki Pages

Server Error Logs
Delete...
Undefined variable: quality
5 minutes ago - vault/core/controller/dm/base/vw.php:1190
Delete...
Undefined variable: quality
5 minutes ago - vault/core/controller/dm/base/vw.php:1190
Delete...
Undefined variable: quality
6 minutes ago - vault/core/controller/dm/base/vw.php:1190
Delete...
Undefined variable: quality
7 minutes ago - vault/core/controller/dm/base/vw.php:1190
Delete...
Database Error: REPLACE INTO `xf_data_registry` (`data_key`, `data_value`) VALUES ('vw_prefixs','a:1:{i:1;a:7:{s:8:"prefixid";i:1;s:5:"title";s:7:"Special";s:9:"bbcodetag";s:0:"";s:9:"prefixkey";s:7:"special";s:8:"parentid";i:0;s:10:"languageid";i:0;s:9:"cache_key";i:1;}}'), ('vw_nodetypes','a:25:{s:4:"page";a:2:{s:2:"id";i:1;s:2:"on";b:1;}s:8:"language";a:2:{s:2:"id";i:2;s:2:"on";b:1;}s:4:"area";a:2:{s:2:"id";i:3;s:2:"on";b:1;}s:5:"index";a:2:{s:2:"id";i:4;s:2:"on";b:1;}s:10:"discussion";a:2:{s:2:"id";i:5;s:2:"on";b:1;}s:7:"comment";a:2:{s:2:"id";i:6;s:2:"on";b:1;}s:8:"revision";a:2:{s:2:"id";i:7;s:2:"on";b:1;}s:5:"forum";a:2:{s:2:"id";i:8;s:2:"on";b:1;}s:4:"user";a:2:{s:2:"id";i:9;s:2:"on";b:1;}s:4:"feed";a:2:{s:2:"id";i:10;s:2:"on";b:1;}s:8:"feeditem";a:2:{s:2:"id";i:11;s:2:"on";b:1;}s:6:"prefix";a:2:{s:2:"id";i:12;s:2:"on";b:1;}s:4:"book";a:2:{s:2:"id";i:13;s:2:"on";b:1;}s:8:"category";a:2:{s:2:"id";i:14;s:2:"on";b:1;}s:6:"attach";a:2:{s:2:"id";i:15;s:2:"on";b:1;}s:8:"redirect";a:2:{s:2:"id";i:16;s:2:"on";b:1;}s:7:"special";a:2:{s:2:"id";i:17;s:2:"on";b:1;}s:5:"topic";a:2:{s:2:"id";i:18;s:2:"on";b:1;}s:10:"attachedit";a:2:{s:2:"id";i:19;s:2:"on";b:1;}s:7:"chapter";a:2:{s:2:"id";i:20;s:2:"on";b:1;}s:12:"categoryitem";a:2:{s:2:"id";i:21;s:2:"on";b:1;}s:8:"template";a:2:{s:2:"id";i:22;s:2:"on";b:1;}s:6:"island";a:2:{s:2:"id";i:23;s:2:"on";b:1;}s:6:"thread";a:2:{s:2:"id";i:24;s:2:"on";b:1;}s:4:"poll";a:2:{s:2:"id";i:25;s:2:"on";b:1;}}'), ('vw_bbcodes','a:19:{s:8:"autolink";i:31;s:9:"bookindex";i:253;s:7:"comment";i:33;s:9:"container";i:0;s:3:"div";i:33;s:4:"file";i:35;s:8:"footnote";i:117;s:10:"forumindex";i:253;s:7:"gallery";i:211;s:1:"h";i:33;s:2:"hr";i:33;s:7:"reflist";i:117;s:11:"showthreads";i:253;s:4:"span";i:33;s:5:"table";i:49;s:8:"template";i:119;s:3:"toc";i:117;s:6:"widget";i:35;s:4:"wiki";i:35;}') Mysqli statement execute error : Deadlock found when trying to get lock; try restarting transaction
Today at 1:09 PM - vault/core/controller/db/xf.php:136
Delete...
Undefined variable: quality
Today at 12:40 AM - vault/core/controller/dm/base/vw.php:1190
Delete...
Undefined variable: quality
Today at 12:40 AM - vault/core/controller/dm/base/vw.php:1190