[Serusers] Ser-Web interface errors...

Hi! I have access to the admin web page (http://localhost/serweb/admin/index.php) with the default user "admin". I can see the users I have created with the "serctl add..." wish. The problem comes when clicking in the hyperlink "account" for one of the users in the list (in the administration web page). A new page is opened, and in the upper section appears the errors: # Warning: fopen(/tmp/ser_fifo): failed to open stream: Permission denied in /var/lib/serweb/html/functions.php on line 315 # Warning: Cannot modify header information - headers already sent by (output started at /var/lib/serweb/html/functions.php:315) in /var/lib/serweb/html/page.php on line 35 And written with red font, appears this message too: # DB Error: no such table # sorry -- cannot open write fifo I have uncommented the line "fifo_mode=0660" at the /etc/ser/ser.cfg, as it was told here at the list, but it goes wrong. I have changes permissions in /tmp/ser_fifo, but then the web page doesnt get opened... I would appreciate your help in this point, because I suppose that creating user accounts and managing them is the only required step to intercomunicate softphones in a simple LAN, isnt it? Thanks! Pablo