Fatal Error after installing Polylang

Hi,

I’ve been using Polylang for a few years on a number of different sites and I’ve always been very happy with it. Unfortunately I just installed it on my new site and all of a sudden, when I try to log in to the WordPress admin panel, I get the following error message. Any ideas?

Thanks,
Isaac

Fatal error: Uncaught Error: Call to a member function get_default_language() on null in /data/www/21099/thanksgiving_cz/www/wp-content/plugins/wppizza/classes/class.wppizza.wpml.php:61 Stack trace: #0 /data/www/21099/thanksgiving_cz/www/wp-content/plugins/wppizza/classes/class.wppizza.wpml.php(682): WPPIZZA_WPML->__construct() #1 /data/www/21099/thanksgiving_cz/www/wp-content/plugins/wppizza/includes/setup/required.files.inc.php(117): require_once(‘/data/www/21099…’) #2 /data/www/21099/thanksgiving_cz/www/wp-content/plugins/wppizza/wppizza.php(189): require_once(‘/data/www/21099…’) #3 /data/www/21099/thanksgiving_cz/www/wp-content/plugins/wppizza/wppizza.php(83): WPPIZZA->requires() #4 /data/www/21099/thanksgiving_cz/www/wp-content/plugins/wppizza/wppizza.php(202): WPPIZZA::instance() #5 /data/www/21099/thanksgiving_cz/www/wp-content/plugins/wppizza/wppizza.php(205): WPPIZZA() #6 /data/www/21099/thanksgiving_cz/www/wp-includes/class-wp-hook.php(298): wppizza_ini(”) #7 /data/www/21099/thanksgiving_cz/www/wp-includes/ in /data/www/21099/thanksgiving_cz/www/wp-content/plugins/wppizza/classes/class.wppizza.wpml.php on line 61

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