Password Protect issue


this is the code I have on my "advertise with us" page (link via menu at the bottom left of the pages):

[protect password="imanadvertizer"]
my copy

but I can't access that page at all when I use "imanadvertizer" when I want to access the content of that page. Yesterday it worked 2/5 times, and someone else who tried it could not get it to work either.

Thanks to check if you can replicate the issue and advise how to solve it.

Rgds - Chris