udm_load_ispell_data(): unknown ispell type parameter

Hi all,

I am using mnogosearch 3.2.31 + mnogosearch-php 3.2.10 + php frontend
3.2.11 (also tried with 3.2.9).

When I load the search.php script, I get a simple error message "An
error occured!".

In Apache, the logs tell me  this:

udm_load_ispell_data(): Unknown ispell type parameter
in /usr/share/mnogosearch-php/init.inc on line 402

Line 402 of init.inc is:
        if (!
Udm_Load_Ispell_Data($udm_agent,UDM_ISPELL_TYPE_DB,'','',1)) {

The PHP doc (php.net) looks like this is the correct parameter to give
this function.

I know there is a more recent version of mnogosearch, but I would like
to make it work with this one.

Does anybody have an idea of what is missing?

Yannick