I'm a new member (free) and having some issues with navigating this site.

I DO understand some features and areas within the site are not available to free members, but the problems I'm having doesn't seem like ones related to my free status.

I'm getting this "security token invalid" pop up a LOT and I have no idea what it means, but it says to contact the administrator.

When I want to start a new thread (or reply to an existing tread) it says im am only allowed one post per day (and I'm now wasting it telling you what problems im having with the site?)

I cant access my notifications.

Are these problems due to my restricted access as a free "member", or are there other problems that need addressed to get the site to function smoothly for me?

Thanks.