Issues with images after upgrading joomla

My site at jvrprojects.co.uk is refusing to allow the upload of images as it used to. We used to load images as a gallery which worked wonderfully until a couple months back when I updated to joomla 3.4 (now 3.5)

Can this be sorted without the need to upgrade top easyblog 5 as I don't want to lose all work previously loaded in easyblog.

If you can work it front the backend - its definitely does not work from the frontend - check out the frontend login details I posted to see the issue.

thanks for your help.