Some contents are not being displayed on Wordpress website?

I have a website that i have to fix.Its a wordpress website. I am a newbie to wordpress and i dont have much knowledge about it. The problem that i am facing is some plugin is preventing some sections of the website from being displayed.Check it out here =>

Link to the website

I think Some plugin might be causing this problem. I would really appreciate it if you guys could help me out...

Thanks in advance.

via Chebli Mohamed