Easiest solution is to just run the installer again. However if you’d like to fix this manually please follow the below instructions.
Via SSH please execute the following commands:
echo “allow_url_include = On” >> /usr/local/lib/php.ini
echo “allow_url_fopen = On” >> /usr/local/cpanel/3rdparty/etc/php.ini
echo “allow_url_include = On” >> /usr/local/cpanel/3rdparty/etc/php.ini