It seems like you didn't update your module to latest version during the upgrading process.

You can check my attached screenshot below.

Can i have the permission to help you update again to latest version of Easyblog on your site?

I'd be happy for you to help me and then perhaps let me know where I went wrong with the update?

Thanks - dontou need any more information ?

I already help you updated again to latest version of Easyblog, can you give it a check is it load fine now?

By the way, that was some known issue which image not populate on the image wall module, can you try download my attached file and replace into this following and see how it goes?

JoomlaFolder/modules/mod_easyblogimagewall/tmpl/default.php