How to fix Broken Image links in WordPress 3.9.1

Hello,
Recently I migrated my wordpress network to another host.
Everything works the same except Images are broken.
I uploaded images via Admin and it is uploaded in (public_html/wp-content/blogs.dir/(siteid)/files) .

But when I come to frontend. The images are broken. After copying the Image url by right clicking, I got to know that it is loading image from (public_html/files).

I dont know how to change the link that fetches the image.
Secondly I tried to upload files by adding some code in wp-config, but still it doesnt work.

I also changed directory and file perimissions, but still not working.
Please give me a correct solution.

Here is the link of website: https://free.advertising.com.my/

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