Help! Couldn't edit blog contents!

Guys I really need your help. I just installed MODx and the intstallation was successful. When I go to edit Blog Content, it appeared:

MODx encountered the following error while attempting to parse the requested resource:
« Execution of a query to the database failed - Table ’peter_index.modx_’ doesn’t exist »
SQL: UPDATE modx_ SET editedon=’’,editedby=’1164409622’ WHERE id = ’1’;
[Copy SQL to ClipBoard]

Parser timing
MySQL: 0.0027 s s (4 Requests)
PHP: 1164409622.3588 s s
Total: 1164409622.3615 s s


Had I done something wrong? How do I fix it? I need help As soon as possible!
Thanks

What version of MODx are you using? I think this was an issue with 0.9.2.1 - you can always try out the 0.9.5 RC2 release which fixes this bug and about a hundred more.

I Think I am using 0.9.2
I just installed it so I don’t want to download it again..
anyways I found out the problem, I don’t know that I couldn’t use "edit content" in manager