Hi,
I'm new at s9y and ran into the same problem after installation.
I searched for solutions in this forum, but found only the hint, that this msg appears if the correct language file couldn't be loaded.
Some Info:
version 0.9.1
language: de (also in DB!)
charset: utf-8
Server: apache 1.3.8
but due to the installation with mod_userdir I dont use rewrite rules.
for me it seems, that the problem occured in includes/lang.inc.php:7
as if I echo and kill it here, I recieve: /home/simb/public_html/serendipity/lang/serendipity_lang_.inc.php
so charset and language is missing.
I found out then, that in serendipity_config.inc.php this file is loaded twice, which makes it hard to find the real problem!
In the loaded page with this error-msg I can see, that also the meta-charset is wrong and even the doctype is HTML 4.01 instead of XHTML what I choosed during the installation. The config-flag for XHTML is true in the DB.
All files from the tar.gz are there and nothing else was modified by me.
The files serendipity/lang/serendipity_lang_de.inc.php and serendipity/lang/utf8/serendipity_lang_de.inc.php exists.
The file-permission is at 0777 for the whole serendipity directory.
I repeated the installation already twice, but with the same results.
I have no more clue, where I have something wrong...
So I hope for some help/hints
greets
simb