HI Ashutosh,
The easiest way is to uninstall EasySocial and drop all the EasySocial db tables ( tables with prefix jos_social_xxxx ) and then do a re-install of EasySocial in a clean state.
Or if you just want to re-migrate photo and avatar, you can then try the below sql. Please backup your db first before you execute below queries.
-- 1. revert photos
delete from `jos_social_photos` where id in ( select `uid` from `jos_social_migrators` where `element` = 'photos' and `component` = 'com_community');
delete from `jos_social_migrators` where `element` = 'photos' and `component` = 'com_community';
-- 2. revert photo albums
delete from `jos_social_albums` where id in ( select `uid` from `jos_social_migrators` where `element` = 'albums' and `component` = 'com_community');
delete from `jos_social_migrators` where `element` = 'albums' and `component` = 'com_community';
-- 3. revert user avatar
delete from `jos_social_migrators` where `element` = 'avatar' and `component` = 'com_community';
Replace the jos_ to your Joomla table prefix.
Also, make sure all the JomSocial image files has the 'read' permission and also, make sure below folders has the read + write permission as the migrator will actually read the original image file and re-create the new images file in EasySocial.
JOOMLA/media/com_easysocial/images
JOOMLA/media/com_easysocial/avatars
JOOMLA/media/com_easysocial/photos
If you still having issue migrating the avatar and photos, then you pass me your Joomla backend access, your ftp account and your phpmyadmin access and I will try to migrate for you. I might need to rerun the migrator to test, so please do a backup and if possible, reset your EasySocial db tables in a clean state so that it ease my troubleshooting process
Hope this help and have a nice weekends