Unexpected non-MediaWiki exception encountered, of type &quot;Error&quot;<br />
Error: Call to undefined function dl() in /var/www/wiki/includes/db/Database.php:337<br />
Stack trace:<br />
#0 /var/www/wiki/includes/db/Database.php(304): Database-&gt;open('localhost', 'root', 'root', 'wiki')<br />
#1 /var/www/wiki/includes/db/LoadBalancer.php(647): Database-&gt;__construct('localhost', 'root', 'root', 'wiki', 1, 16)<br />
#2 /var/www/wiki/includes/db/LoadBalancer.php(530): LoadBalancer-&gt;reallyOpenConnection(Array, false)<br />
#3 /var/www/wiki/includes/db/LoadBalancer.php(453): LoadBalancer-&gt;openConnection(0, false)<br />
#4 /var/www/wiki/includes/GlobalFunctions.php(2792): LoadBalancer-&gt;getConnection(0, 'watchlist', false)<br />
#5 /var/www/wiki/includes/api/ApiQuery.php(152): wfGetDB(-1, 'watchlist')<br />
#6 /var/www/wiki/includes/api/ApiQueryBase.php(352): ApiQuery-&gt;getNamedDB('watchlist', -1, 'watchlist')<br />
#7 /var/www/wiki/includes/api/ApiQueryWatchlist.php(57): ApiQueryBase-&gt;selectNamedDB('watchlist', -1, 'watchlist')<br />
#8 /var/www/wiki/includes/api/ApiQueryWatchlist.php(44): ApiQueryWatchlist-&gt;run()<br />
#9 /var/www/wiki/includes/api/ApiQuery.php(233): ApiQueryWatchlist-&gt;execute()<br />
#10 /var/www/wiki/includes/api/ApiMain.php(420): ApiQuery-&gt;execute()<br />
#11 /var/www/wiki/includes/api/ApiMain.php(238): ApiMain-&gt;executeAction()<br />
#12 /var/www/wiki/includes/api/ApiMain.php(222): ApiMain-&gt;executeActionWithErrorHandling()<br />
#13 /var/www/wiki/api.php(86): ApiMain-&gt;execute()<br />
#14 {main}<br />
<br />
#0 /var/www/wiki/includes/db/Database.php(304): Database-&gt;open('localhost', 'root', 'root', 'wiki')<br />
#1 /var/www/wiki/includes/db/LoadBalancer.php(647): Database-&gt;__construct('localhost', 'root', 'root', 'wiki', 1, 16)<br />
#2 /var/www/wiki/includes/db/LoadBalancer.php(530): LoadBalancer-&gt;reallyOpenConnection(Array, false)<br />
#3 /var/www/wiki/includes/db/LoadBalancer.php(453): LoadBalancer-&gt;openConnection(0, false)<br />
#4 /var/www/wiki/includes/GlobalFunctions.php(2792): LoadBalancer-&gt;getConnection(0, 'watchlist', false)<br />
#5 /var/www/wiki/includes/api/ApiQuery.php(152): wfGetDB(-1, 'watchlist')<br />
#6 /var/www/wiki/includes/api/ApiQueryBase.php(352): ApiQuery-&gt;getNamedDB('watchlist', -1, 'watchlist')<br />
#7 /var/www/wiki/includes/api/ApiQueryWatchlist.php(57): ApiQueryBase-&gt;selectNamedDB('watchlist', -1, 'watchlist')<br />
#8 /var/www/wiki/includes/api/ApiQueryWatchlist.php(44): ApiQueryWatchlist-&gt;run()<br />
#9 /var/www/wiki/includes/api/ApiQuery.php(233): ApiQueryWatchlist-&gt;execute()<br />
#10 /var/www/wiki/includes/api/ApiMain.php(420): ApiQuery-&gt;execute()<br />
#11 /var/www/wiki/includes/api/ApiMain.php(238): ApiMain-&gt;executeAction()<br />
#12 /var/www/wiki/includes/api/ApiMain.php(222): ApiMain-&gt;executeActionWithErrorHandling()<br />
#13 /var/www/wiki/api.php(86): ApiMain-&gt;execute()<br />
#14 {main}<br />