Hi,
I apologize this because it's may based on my server setting issue.
Regarding EasySocial> Account> Preferences> Account Settings > Appearance > Upload Avatar,
when the user uploads his profile picture, the system says
Fatal error: Out of memory (allocated 68681728) (tried to allocate 4915201 bytes) in path/to/mysite/public_html/administrator/components/com_easysocial/includes/image/adapters/asido/class.driver.gd.php on line 208.
This only happens when the user uploads big file e.g. 3MB.
I've checked memory_limit and I think it is OK.
The user belonging to Super Users of Joomla! user groups can upload those big files for his avatar.
What should I check then?