password_protect.php page is blank

[ibag]

Hello!

first let me say that I am new with PHP and scripts.

I have uploaded the password_protect.php on my site. The first time that I opened the page it showed ok, but when i typed the login and password, the protected page did not show.
Then I tried to log again, but the password_protect.php was blank. I have no errors reported.
It is strange because when i tried to open the password_protect.php page the next day, it was showing good, but again on the second attempt is blank page.
The link to my demo site is http://tri.site90.net/ (it is a free web host), click on the word "korisnik"  - this is the link to the password_protect.php page.
I checked the hosting server, it supports PHP.

I tried to put it on another host but the problem is the same. And other php scripts work fine.

Thanks in advance, best regards Gabi

[ibag]

it is me again 

when I type the wrong login or password the password_protect.php page shows again, but when I type the right one, it is blank on second attempt.
Mayby the problem is in the protected page members.php
it first line is <?php include("/home/a7284997/public_html/password_protect.php"); ?>
it opens well when I type the address in the browser

[ibag]

The scripts is great, but I did some mistake, now I solved it, and it works great!!