Still get this error only DBMan encountered an internal error. Please enable debugging to view.

Does your script work anyway, or is that the only thing that appears on the page?

--> if your script still works then turn debugging "off" in default.cfg by changing the "1" to a "0" on the appropriate line.

# Display Debugging Information (1 = Yes, 0 = No).
$db_debug = 0;

--> if your script doesn't still work then you have an error somewhere.

It works through all of the application but I get it when I use the mass email option.

Fixed the mass mailing problem.