Upgrading Drupal

I get the following error when trying to run cron manually:

Fatal error: Call to undefined function recaptcha_get_html() in /home/xxx/public_html/xxx/includes/common.inc(1645) : eval()'d code on line 1866

I just upgraded to 6.10 and noticed it as soon as I finished the update. It may have been happening before that, but I'm not sure.

I tried deleting the new upgrade and putting back a fresh copy of 6.10 without my themes and modules, but only my settings.php file and the same exact error happens.

I need some help.
I made a mistake. When I tried to upgrade to the latest version of 6.10 from 6.8 it said one of the tables had an error (url_alias I think). I made a mistake and deleted the table instead of altering the index.
I tried to restore from a saved backup sql file, but no joy.. I know how stupid a thing it was, but just a senior moment I guess. The upshot is I got the hosting company to restore to an earlier version, and it works.

Some of my menus were removed after upgrading drupal from 5.x to 6.x. These are not menu items that are associated with views. They are just regular menus that point to nodes.

Hello,
I tried to install a custom theme called \"Genesis Dark matter\" & now for whatever reason the Web Site doesn`t show. I don`t even get a error message.
These are the instructions that I followed for the installation....
http://agoodi.com/installing_a_custom_drupal_theme
How do I fix this?
Please help.
Thanks.

Just curious

I've updated/upgraded installed Drupal so many times.

All I do is go into my site -

I run the backup migrate mod and save download mysql to my computer
then I run FTP and copy the entire drupal domain folder package down to my computer.
This is basically a complete backup without archiving the domain folders.

I go into Cpanel mySql and write down the name of my dbase and user name for Mysql for the site.(i have PW)

One big thing I don't do --- I don't disable any of the modules of my Drupal site.

3. I delete the previous drupal domain completely from webserver

3. I FTP the new version of Drupal to my empty domain folder

4. I make a copy of the default.settings.php on mycomputer and change the name of it to settings.php
and FTP it to the sites/default/ I change permissions on settings.php to 777

5. I point to my domain from browser and it gives me setup screen.

6. I enter my database name, username, password.

Sometimes I have a prefix for my tables I have to add under advanced.

Afterward I go back into admin and run update on the modules. (don't know if this makes any difference)

------I do this to just make sure I've got a working Drupal installation. I may even run through a few parts of the installed drupal.

Then I go back to mycomputer and FTP my previous Sites folder to replace the new one on my webserver

After removing all my old modules and themes (but leaving the /files directory intact) i installed D6.10, but i'm getting the following errors. I read on another post that I should disable all modules through phpMyAdmin, so I did, but nothing happenned. If anybody can shed some light :

Warning: Unknown column 'serialized' in 'field list' query: SELECT data, created, headers, expire, serialized FROM cache WHERE cid = 'variables' in /home2/mainsite/public_html/mysite/includes/database.mysql.inc on line 128

Warning: Unknown column 'serialized' in 'field list' query: UPDATE cache SET data = 'a:657:{s:13:\"theme_default\";s:10:\"bluemarine\";s:13:\"filter_html_1\";i:1;s:18:\"node_options_forum\";a:1:{i:0;s:6:\"status\";}s:17:\"menu_primary_menu\";i:2;s:19:\"menu_secondary_menu\";i:2;s:15:\"install_profile\";s:7:\"default\";s:17:\"node_options_page\";a:1:{i:0;s:6:\"status\";}s:12:\"comment_page\";i:0;s:14:\"theme_settings\";a:1:{s:21:\"toggle_node_info_page\";b:0;}s:18:\"drupal_private_key\";s:64:\"36f1a0a5313d305319ce68c73f105b00afa990a2e8e396654a30feae33d97c41\";s:19:\"file_directory_temp\";s:4:\"/tmp\";s:19:\"file_directory_path\";s:5:\"files\";s:14:\"file_downloads\";s:1:\"1\";s:9:\"clean_url\";s:1:\"1\";s:9:\"site_name\";s:9:\"Art Burp!\"; in /home2/mainsite/public_html/mysite/includes/database.mysql.inc on line 128