Code:
InvalidArgumentException: XenForo upgrade check failed: Unexpected result, starting '<!DOCTYPE html> <!--[if lt IE 7]> <html class="no-js ie6 oldie" lang="en-US"> <![endif]--> <!--[if I' // json_decode error: Syntax error
Code:
#0 src/XF/Service/Upgrade/Checker.php(81): GuzzleHttp\json_decode('<!DOCTYPE html>...', true)
#1 src/XF/Admin/Controller/Tools.php(408): XF\Service\Upgrade\Checker->check()
#2 src/XF/Mvc/Dispatcher.php(321): XF\Admin\Controller\Tools->actionUpgradeCheck(Object(XF\Mvc\ParameterBag))
#3 src/XF/Mvc/Dispatcher.php(244): XF\Mvc\Dispatcher->dispatchClass('XF:Tools', 'UpgradeCheck', Object(XF\Mvc\RouteMatch), Object(XF\Admin\Controller\Tools), NULL)
#4 src/XF/Mvc/Dispatcher.php(100): XF\Mvc\Dispatcher->dispatchFromMatch(Object(XF\Mvc\RouteMatch), Object(XF\Admin\Controller\Tools), NULL)
#5 src/XF/Mvc/Dispatcher.php(50): XF\Mvc\Dispatcher->dispatchLoop(Object(XF\Mvc\RouteMatch))
#6 src/XF/App.php(2177): XF\Mvc\Dispatcher->run()
#7 src/XF.php(390): XF\App->run()
#8 admin.php(13): XF::runApp('XF\\Admin\\App')
#9 {main}Press F to pay respects to the XF servers after everyone and their mothers hit it to upgrade
