Yes, i forgot to mention about error: Allowed memory size of 8388608 bytes exhausted (tried to allocate 340 bytes) in /home/zapoznaj/public_html/inc/images.inc.php

you should increase memory_size_limit parameter in settings of your PHP.
About empty photo - plz specify exactly do you have it in profile or gallery photos section? It can happen when GD can't work with uploaded photo (but query to db insert query) - in 6.1.1 for gallery photo this issue was improved.
Provide me FTP and Cpanel details see more of your site, we'll try to help your in this case.