[Serusers] Registration failes

[Teppo Lunnas]

I have installed SER 0.8.11 on Mandrake 9.1 with its native MySQL and 
php and made MySQL-database with ser_mysql. The SER itself works fine 
with Messenger 4.7. Then I installed serweb and made all changes to its 
config.php and other files.  Again it works ok but when I try to 
register a new user and answer to the e-mail that I get then there comes 
the following message:

400 Table 'aliases' not found in memory, use save("aliases") or 
lookup("aliases") in the configuration script first.
We regret but your iptel.org confirmation attempt failed.
Please contact info at iptel.org for further assistance.
Back to login form.

My registration details can yet be found in ser database from tables 
subscriber and pending at the same time. What goes wrong and what does 
that error message mean?