"Have your webhosting partner change the owner of the g2data dir recursively (all files and folders) to the webserver user, unless php cgi + suexec is used. If you don't understand this instruction, forward it directly to your webhosting partner. The webhost has to do this only once, I'm sure they will do it. If they don't then make sure that the webserver user can write and delete files in this directory (chmod 777)."
Also, I sent a ticket concerning this, but I'm not sure if it went through, as after hitting the send button I got a timeout/404.