* Urgent * Image URL issue, most images not displaying

I’ve got a problem where many pictures at my site http://www.mumpages.com, are not displaying. It is because the path in the Media Library has inexplicably changed from the set, default path https://mumpages.com/public_html/wp-content/themes/directorypress/thumbs/In2Life.jpg to https://mumpages.com/wp-content/uploads/In2Life.jpg.

I have checked and the file is definitely still there (the one in the above example), as are all the other files that are affected.

* Permissions are 777.
* I have played with permalink structure, it is set to post-name.
* When I try to load the above photo directly, it throws a 404 error.

Its quite frustrating and its effecting paying customers.

It happened after a fix for WP 3.7.1 was installed from this site to resolve the fix here: https://www.premiumpress.com/forums/topic/wordpress-3-7-fix-for-version-7-themes/. However it may or may not be related.

If someone knows why this occurred and can advise a fix I would be very relieved!

Thanks in advance. Simon.