It's not only you who had experienced the same. Many also did, and the only thing they can do is to accept it unfortunately.
I guess as long as the amount of money that you deposited will not affect your life financially then just move forward and forget about it.
Anyway, is it only me who are experiencing this whenever I tried to open their freebitcoin website?

Unless this is how their home page is right now, but I doubt it is. Any solutions for those who've experienced the same as mine?