Exception encountered, of type &quot;PDOException&quot;<br />
[ZkY8cwk2D65Lq7KHxnK3MQAAABw] /index.php?title=%E5%8C%97%E6%B5%B7%E9%81%93/%E6%9C%AD%E5%B9%8C%E5%B8%82/%E5%8E%9A%E5%88%A5%E5%8C%BA&amp;action=edit&amp;undoafter=279880&amp;undo=311590   PDOException from line 47 of /var/www/html/mediawiki/bo_lib.php: SQLSTATE[HY000] [1040] Too many connections<br />
Backtrace:<br />
#0 /var/www/html/mediawiki/bo_lib.php(47): PDO-&gt;__construct(string, string, string)<br />
#1 /var/www/html/mediawiki/bo_lib.php(931): bo_lib-&gt;connectDB()<br />
#2 /var/www/html/mediawiki/bo_lib.php(31): bo_lib-&gt;importADsArea()<br />
#3 /var/www/html/mediawiki/bo_lib.php(37): bo_lib-&gt;__construct()<br />
#4 /var/www/html/mediawiki/skins/MikleTweeki/MikleTweeki.skin.php(4077): bo_lib::instance()<br />
#5 /var/www/html/mediawiki/extensions/SutekiCustom/SutekiCustom.php(493): init_bo_lib(string)<br />
#6 /var/www/html/mediawiki/includes/Hooks.php(195): SutekiCustom::onBeforePageDisplay(OutputPage, SkinMikleTweeki)<br />
#7 /var/www/html/mediawiki/includes/OutputPage.php(2321): Hooks::run(string, array)<br />
#8 /var/www/html/mediawiki/includes/MediaWiki.php(753): OutputPage-&gt;output()<br />
#9 /var/www/html/mediawiki/includes/MediaWiki.php(519): MediaWiki-&gt;main()<br />
#10 /var/www/html/mediawiki/index.php(43): MediaWiki-&gt;run()<br />
#11 {main}<br />