Unexpected non-MediaWiki exception encountered, of type &quot;TypeError&quot;<br />
TypeError: count(): Argument #1 ($value) must be of type Countable|array, string given in /var/www/html/bcwiki/includes/api/ApiQueryBase.php:183<br />
Stack trace:<br />
#0 /var/www/html/bcwiki/includes/api/ApiQueryBacklinks.php(120): ApiQueryBase-&gt;addWhereFld(&#039;il_to&#039;, &#039;Albert_Einstein...&#039;)<br />
#1 /var/www/html/bcwiki/includes/api/ApiQueryBacklinks.php(223): ApiQueryBacklinks-&gt;prepareFirstQuery(NULL)<br />
#2 /var/www/html/bcwiki/includes/api/ApiQueryBacklinks.php(90): ApiQueryBacklinks-&gt;run()<br />
#3 /var/www/html/bcwiki/includes/api/ApiQuery.php(224): ApiQueryBacklinks-&gt;execute()<br />
#4 /var/www/html/bcwiki/includes/api/ApiMain.php(664): ApiQuery-&gt;execute()<br />
#5 /var/www/html/bcwiki/includes/api/ApiMain.php(327): ApiMain-&gt;executeAction()<br />
#6 /var/www/html/bcwiki/includes/api/ApiMain.php(311): ApiMain-&gt;executeActionWithErrorHandling()<br />
#7 /var/www/html/bcwiki/api.php(115): ApiMain-&gt;execute()<br />
#8 {main}<br />