Hi,
I needed to reinstall WHMCS and now i can not login as admin.
Customer panel is working perfectly. But as admin, after a login, there is a blank page (dologin.php).
In the error log:
[10-Jul-2018 11:31:33 UTC] PHP Fatal error: Class 'WHMCS\Admin\ApplicationSupport\Http\Message\ResponseFactory' not found in /home/xxxxxxx/public_html/painel/vendor/whmcs/whmcs-foundation/lib/Http/Message/ResponseFactory.php on line 0
I`ll appreciate any suggestion regarding this problem.