Important Search problem with Russian!

Good night! Yesterday I installed Kunena and tested it. And I found one trouble.With attempt search string with russian symbols I get this problem:


variable value
$0 "key value
$file "Z:\home\vyazma67.ru\www\components\com_kunena\lib\kunena.debug.php"
$line "42"
$function "debug_callstackinfo"
[args] Nested Array
"
$1 "key value
$file "Z:\home\vyazma67.ru\www\components\com_kunena\lib\kunena.debug.php"
$line "62"
$function "trigger_dberror"
[args] Nested Array
"
$2 "key value
$file "Z:\home\vyazma67.ru\www\components\com_kunena\lib\kunena.search.class.php"
$line "147"
$function "check_dberror"
[args] Nested Array
"
$3 "key value
$file "Z:\home\vyazma67.ru\www\components\com_kunena\kunena.php"
$line "796"
$function "CKunenaSearch"
$class "CKunenaSearch"
$type "->"
[args] Nested Array
"
$4 "key value
$file "Z:\home\vyazma67.ru\www\libraries\joomla\application\component\helper.php"
$line "162"
[args] Nested Array
$function "require_once"
"
$5 "key value
$file "Z:\home\vyazma67.ru\www\includes\application.php"
$line "124"
$function "renderComponent"
$class "JComponentHelper"
$type "->"
[args] Nested Array
"
$6 "key value
$file "Z:\home\vyazma67.ru\www\index.php"
$line "68"
$function "dispatch"
$class "JSite"
$type "->"
[args] Nested Array
"

Installed version: 1.0.8 | 2009-02-17 | 1166 [ Speakup! ] | php 5.2.4 | mysql 5.0.45-community-nt

Fatal error: Unable to count messages.\nDB function reports no errors in Z:\home\vyazma67.ru\www\components\com_kunena\lib\kunena.debug.php on line 54
Help Me, plz...

Do you know, what's need to do, to fix this bug?

Can you give some example (how to reproduce this one), so that I can debug this?