hello to all!

I have a very strange problem with my hosting now. When i go to the next URL: http://innercore.zxq.net/comunidad/ i get a 404 Error. The problem are that i have installed Vanilla on my hosting account, and Vanilla work for me, but when i give the URL to others, these people can't enter, and only receive a 404 error. Why i have this problem?

Sorry for my english, i'm speak spanish

Thanks in advance!