Changed blog url – Did work – Now functions.php line 502 error No dashboard

Hello – I have a problem and sure do need help, please. Could this be a simple problem anyone could direct me to? Problem site:

http://thecomputercat.com/MountainRidgeRealty/

I changed the blog url and everything was working fine at first. I also successfully and updated the tables in phpMyAdmin to the new url. I had logged in and checked some things in settings, but they were already updated.

Also – Read the helpful links on the support forum about moving blogs and changed the functions.php file by adding the 2 lines with appropriate relevant new url text changes:

update_option(‘siteurl’,’http://example.com/blog’);
update_option(‘home’,’http://example.com/blog’);

It pulled up everything fine except for the internal media photos.

http://thecomputercat.com/MountainRidgeRealty/

So this morning I was investigating how to update the internal links so I would not have to change all those photo urls individually. I saw the link to the velvet-blue plugin, which was not shown to be working up to 2.9.2 but I tried it anyway.

Coincidentally or not – after activating and then clicking on the option to change the internal links, I got this:

Fatal error: Call to a member function escape() on a non-object in /home/content/57/5042657/html/MountainRidgeRealty/wp-includes/functions.php on line 502

I *think* upon my first reload immediately after selecting ‘internal links’ – is when the dashboard became inaccessible, even typing in the login file etc.

So I renamed the plugin – but the error and inability to pull up the site persists. Also renamed the entire plugins directory hoping to deactivate any problem, no difference, so named it back again.

I checked the functions.php file and tried removing and then replacing the two added lines, as the wordpress instructions direct you to remove them once the site works (why, I don’t understand). When I tried removing them as an experiment after I had the above problems, I got just a blank white page, no 502 error, so I put them back, and the 502 error is back. I then repeated the process using the functions.php from ‘before’ yesterday’s move, adding the two lines back in.

http://codex.wordpress.org/Changing_The_Site_URL

Since then – I rechecked my urls in the database which appear to be correct and unchanged by any of this morning’s fatal experiments.

I have also manually changed the wp_meta posts in the db to all the correct urls, in case the error was because all those hundred or so the thumbnails on many posts were throwing an error.

I backed up the database first and the config, htaccess and functions files only. I have replaced those, to no avail.

The only things I can remember I was doing this morning when the problem occurred was I had shortly before updated wp to 2.9.2 (and it reloaded ok), then I installed that plugin and had clicked on the option to update the internal links (this was right before the lock-out).

There are only two files that show a date-stamp change on the server since everything worked this morning:

.htaccess (this because I downloaded and renamed it just to have a look at it; all I saw in there was super-cache stuff.

– and the functions.php file

Also deleted/renamed the cache file.

Thank you very much in advance for your help ♦from Catherine.