Hello kabran jonathan,

Is it possible provide us with your Joomla backend and FTP access so we can help you check on this? Please advise.
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hello kabran jonathan,

Sorry for late reply to this,
I have help you change the square pixel to 450px x 450px in your file
JoomlaFolder\administrator\components\com_easysocial\constants.php

//LINE 344 - 345

define('SOCIAL_PHOTOS_SQUARE_WIDTH', 450);

define('SOCIAL_PHOTOS_SQUARE_HEIGHT', 450);

it should work fine now.

Thanks!!!

Sincerely..

hello kabran jonathan,

You're welcome
Have a nice day !