Upgrading Drupal

Greetings all,

I think starting last week or so, my client's website has been having errors in regards to a CSS file. I had recently upgraded a couple modules and I think it was at that point that I started having issues. What would happen is every couple days, the site's CSS (and Javascript, for that matter) would just fail and no longer render (log error below)

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warning page not found 11/25/2010 - 18:41 sites/all/files/css/css_7ee3025207db86139d5eaca25572 ... admin
warning page not found 11/25/2010 - 18:41 sites/all/files/js/js_f36053aa7f0199b50088afe87fca29 ... admin

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CSS Error, in detail:

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Type page not found
Date Thursday, November 25, 2010 - 18:41
User admin
Location http://www.cosmicclosets.ca/sites/all/files/css/css_7ee3025207db86139d5e...
Referrer http://www.cosmicclosets.ca/
Message sites/all/files/css/css_7ee3025207db86139d5eaca255722f9c.css
Severity warning
Hostname 173.181.120.201

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I didn't name my CSS "css_7ee3025207db86139d5eaca255722f9c.css" so I think that's Drupal compressing my CSS for me.

Would anyone happen to know how I would fix these from erroring our and not rendering? Or, could someone point me to the direction of a "recently installed module (updates)" page, if one exists?

Thanks for your time!!

Screenshots:

http://www.cosmicclosets.ca/sites/all/files/what-it-looks-like.jpg

Please help me!!

I´ve turned my site off line just to try the functionality out and now i cant get it online

Ive read quite a few posts here on drupal .org and there seems to be 2 way

SQL query where i get
Error
SQL query:

UPDATE variable SET value = 's:1:"0";' WHERE name = 'site_offline';
MySQL said:
#1146 - Table 'site.variable' doesn't exist

And the ?=user to get to the login. But I only get http 500 error.

Anyone any ideas

I just installed a new module (Directory 6.x-1.0-alpha1) on my site and it disabled it completely.

Now my site displays this error: Fatal error: Call to undefined function drupal_add_css() in /home/wvinet/public_html/charlton/modules/directory/directory.module on line 32

I am new at this... I am not sure if this module is compatible with my older Drupal installation... I am not even sure what version my installation is. How do I find out ? Can anyone advise me how I might correct this problem?

Having a problem accessing our site. Tried updating to Drupal 6.x from our current 5.x, and the update did not work. Had problems uplaoding. Uninstalled 6.x now can not access site. We get the following error message:

Fatal error: Call to undefined function user_access() in /hermes/bosweb/web041/b417/d5.adoptapet/public_html/modules/views/views_ui.module on line 139

Can anyone give us directions to solve. website: www.adoptapetfenton.com

Thanks - Todd B

I recently upgraded my Drupal site to the latest version 6 from a previous version 6. My problem is that the modules and various blocks are not working or displaying correctly. Everything has been backed up on my website, all databases and an entire hosting mirror dump.

Would it be possible to undo the whole entire upgrade by simply copy and pasting my backup to the remote server?

Hello, We have been using drupal for about 6 months now using custom themes. Our website has daily users of about 300 people each day and we upgrade our content almost daily.

We would like to change the entire look and feel of our web and decide to try theme 'fever'.