Page buyer not accessible, company page, no problems

After 3 domains, with the 3 flynax scripts, you think that I know everything.... not
The last website did I made the same as the second website, but there is one reason that I can not see the "buyer page" I can see the company page, but the buyer page I have no access to. There are no restrictions ( so far I can find) and I made everything the same as other sites.
The banner drops down, with " you have no access to this page, or your account......

I am now busy for 3 hours, so time to ask for the experts.
Also the "alphabetic search contentbox are not present.

Also, I am afraid that the 2 accounts not viewable on that page.

For company there is page, with the key "at_dealer" and the account with key "dealer"
For buyers and seller in person, i have a page with the "at_buyer", and the account with key "buyer"

Someone any idea?

Have you restricted view on the page to certain groups ?

In the mean time I made a ticket and everything is solved.
Thanks for the replies and help.