Thanks, I will try, actually it was activated this morning, and hadn't caused a site crash yet. However, as soon as I deactivated it via the admin area, I got this error:
Fatal error: Out of memory (allocated 50069504) (tried to allocate 1990301 bytes) in /homepages/40/d154139219/htdocs/Dancing/wp-includes/functions.php on line 252
I'll delete via FTP and install via http://FTP...
We tried increasing the memory yesterday adding define( 'WP_MEMORY_LIMIT', '64M' );
to the wp-config.php