[Req] Invite ERROR

[ERROR]

Country	Korea
Site	nil
Note	i want to join this site to be active as might my experience  will may be useful to others. i have a lot of ideas and questions regarding structural engineering that i want to discuss it with others and take the experience and knowledge. i hope such a dicussion will enhance exchanging and affecting of how we think, and how we solve the problems.

[Invitation System]

	Invitation status	: Person isn't invited yet.
	Permission	: You cannot invite. Because you are guest.
	Your credits	: You have no invitation credits.