Probably your issue, they're not random numbers, each has a specific value according to how a *nix system will treat the file; 777 means world read/write/execute, which means any user with proper access to your directory (such as apache, the webserver) can write to said directory. If it was 755 you aren't building any files in the folder.
As for the changelog, it's an issue with your host, but unless the thread can be located to give them a message on how to fix it there isn't much you can do.
The sidebar data I have at
A Gardeners Forum is:
'LEFT_COLUMN_BOXES' =>
array (
),
'RIGHT_COLUMN_BOXES' =>
array (
1 => 'portal_box_8',
2 => 'portal_box_4',
3 => 'shoutbox',
5 => 'public_calendar',
9 => 'forum_stats',
12 => 'top_posters_30',
),