I did what you mentioned.
now I see this error, when I try to login.
code: 0
file: "/var/www/html/dmxConnectLib/modules/auth.php"
line: 44
message: "Call to a member function login() on null"
trace: "#0 /var/www/html/dmxConnectLib/lib/App.php(173): modules\auth->login(Object(stdClass), 'identity')↵#1 /var/www/html/dmxConnectLib/lib/App.php(137): lib\App->execSteps(Object(stdClass))↵#2 /var/www/html/dmxConnectLib/lib/App.php(107): lib\App->execSteps(Array)↵#3 /var/www/html/dmxConnectLib/modules/core.php(90): lib\App->exec(Object(stdClass), true)↵#4 /var/www/html/dmxConnectLib/lib/App.php(173): modules\core->condition(Object(stdClass), '')↵#5 /var/www/html/dmxConnectLib/lib/App.php(137): lib\App->execSteps(Object(stdClass))↵#6 /var/www/html/dmxConnectLib/lib/App.php(107): lib\App->execSteps(Array)↵#7 /var/www/html/dmxConnectLib/lib/App.php(72): lib\App->exec(Object(stdClass))↵#8 /var/www/html/dmxConnect/api/Security/signin.php(8): lib\App->define(Object(stdClass))↵#9 {main}"