Important Invalid multibyte sequence in argument

Hello

I'm using Kunena 1.5.11 on Joomla! 1.5.17

I get this error over and over again

[06-May-2010 11:27:35] PHP Warning: htmlspecialchars() [<a href='function.htmlspecialchars'>function.htmlspecialchars</a>]: Invalid multibyte sequence in argument in /home/mysite/public_html/components/com_kunena/class.kunena.php on line 1384

I keep getting the error even when I switch to the original english language.

Also I tested changing the mbstring options in my php configuration as someone suggested in the forum.
I tried also mbstring.encoding_translation = off but no luck.

Any help would be greatly appreciated!!!

Hello,

I think this one has been missed, thanks for reporting.

Do you know how to reproduce the issue ?

Hello xillibit,

Thanks for your response. The error shows in the error_log and it's repeated continuously. By just visiting the first page of Kunena I guess the error appear in the logs.

In case you need to take a look at it I can give you access to my admin panel.

What php version do you using ?
What language do you using ? Do you have tried with english ?

I'm using PHP Version: 5.2.13 Greek Language
and Yes I have tried it with the default english language and I still get the same error.

Anyone else have the same problem?

This fills my joomla error_log 60 MB everyday.

I reinstall kunena but still the error doesn't want to go.