Error on upload style.

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exception 'Whoops\Exception\ErrorException' with message 'Call to a member function isEnabled() on null' in /home/so716/domains/maxlife-rpg.pl/public_html/hosting/panel/templates_c/af7b1d656aa870a55081e90c9bc3bd5fd0c47e8c_0.file.login.tpl.php:109
Stack trace:
#0 /home/so716/domains/maxlife-rpg.pl/public_html/hosting/panel/vendor/whmcs/whmcs-foundation/lib/Utility/Error/Run.php(0): WHMCS\Utility\Error\Run->handleError(1, 'Call to a membe...', '/home/so716/dom...', 109)
#1 [internal function]: WHMCS\Utility\Error\Run->handleShutdown()
#2 {main}