To reset password or change password from database, do this:
Open PHPMyAdmin
Go to POS database
Open users table
For the user for which you want to change the password, in the password field put
$2y$10$3YV4RYxkYC1pBLQt8NKY4eYnhQmC0Fhk7vnMNd8Y.BIM1WwC5E7dK
The password will get changed to 123456