I have downloaded v3.22 of this module. It was just recently uploaded in Oct/15. I am getting database connection errors. If I go to Customers-PO Send/Resend, it says this:

Failed to connect database: 8


The log files say this:

[15-Nov-2015 22:36:23 America/New_York] PHP Warning: mysql_query(): Access denied for user 'root'@'localhost' (using password: NO) in /home1/***/public_html/new/shopadmin/send_pos.php on line 880
[15-Nov-2015 22:36:23 America/New_York] PHP Warning: mysql_query(): A link to the server could not be established in /home1/***/public_html/new/shopadmin/send_pos.php on line 880

Any thoughts on how to fix this?