Error connecting to database - check your database connection properties in constants.php file!

SQLSTATE[HY000] [1045] Access denied for user 'gnum'@'localhost' (using password: YES)
PHP Version : 7.3.16-1+ubuntu18.04.1+deb.sury.org+1

Fatal error: Uncaught Error: Call to a member function execute() on null in /srv/quickbox/inc/Session.php:0 Stack trace: #0 /srv/quickbox/inc/Session.php(0): Session->addActiveGuest('3.235.30.155', 1586022721) #1 /srv/quickbox/inc/Session.php(0): Session->startSession() #2 /srv/quickbox/inc/controller.php(0): Session->__construct(Object(Database)) #3 /srv/quickbox/index.php(0): unknown() #4 {main} thrown in /srv/quickbox/inc/Session.php on line 0