Insert Query

[Dannie]

Hello,

After many attempts to solve, I cannot find the error with my Insert Query.

$stmm = $dbh->prepare("INSERT INTO hk_logs(staff,action,timestamp) 
VALUES(:username, 'Logged in Successfully', '".time()."')");

$stmm->bindParam(':username', $_SESSION['username']); 

I really hope I'm not being blind to a simple mistake.
All help is appreciated

[MentaL]