Thread:Project:Support desk/Wiki is getting 500 error after server move/reply (2)

I just enabled it with

I got this:

Notice: Use of undefined constant NS_FORUM - assumed 'NS_FORUM' in /home/sasha/web_servers/sturmkrieg.us/www/LocalSettings.php on line 307

Notice: Use of undefined constant NS_FORUM_TALK - assumed 'NS_FORUM_TALK' in /home/sasha/web_servers/sturmkrieg.us/www/LocalSettings.php on line 308

Fatal error: Smarty error: unable to write to $compile_dir '/home/sasha/web_servers/sturmkrieg.us/www/extensions/Widgets/compiled_templates'. Be sure $compile_dir is writable by the web server user. in /home/sasha/web_servers/sturmkrieg.us/www/extensions/Widgets/smarty/Smarty.class.php on line 1095