After upgrading to 3.3.1, some community photos are gone.
This website is for before upgrading:
www.aafie.com/index.php/community
This website is for after upgrading:
www.aafie.net/index.php/community

From the backend, the following errors can be seen in the photos for those. However, compared with the original
website, the filesizes of the photos are not too big (less than those who have no problem):

Warning: filesize(): stat failed for /home/aafie/public_html/aafie.net/images/originalphotos/443/20/83b619dd0f5d3c0dfe5325ad.jpg in /home/aafie/public_html/aafie.net/administrator/components/com_community/views/photos/view.html.php on line 92 0 MB
I "export" the database from the original website and "import" it to the new website. It appears that some photos were
not exported/imported, as I did not see "443" entry in the above path .....aafie.net/images/originalphotos/

It has been fixed by re-do everything.