Why my private server is detected as a threat?

[REDACTED]

I posted this issue with a false positive report, but it hadn't fix and I didn't get any response.
That is why I write the thread.

My non-public server has began to be detected as a threat by Avast Web Shield.
it is just my private server for studying. i dont know why it recognizes a malicious url.

I already had checked my web site source code several times, but I couldn't find any problem.
Even I also checked online malware scanners but they said that my server is clean.

Can anyone explain to me about this issue?

IP : 1.234.91.194 (S.Korea)
Domain : iz.izuny.net

In addition, my server has been hosted by the korean vps service provider which called CAFE24.

https://www.virustotal.com/ko/url/9b5bb21ee8023401a19d930960c3a15a4cf9c43571ba52a4a886686873e1ec85/analysis/1424614397/
http://zulu.zscaler.com/submission/show/8c5c6867bfb62fa93c73957f87ddf5c9-1424614441
http://www.urlvoid.com/scan/iz.izuny.net/


I should turn off the protection when i connect to my server onerously because of this issue. 
i am using the avast internet security 2015 150222-1. thanks.

[Pondus]

It seems you are using afraid.org as host?......evrything from afraid.org is blocked

IP is blacklisted by  Korea.services.net and apews.org     
check IP here   http://whatismyipaddress.com/blacklist-check

On 5 blacklists here    http://multirbl.valli.org/lookup/1.234.91.194.html

[Eddy]

https://forum.avast.com/index.php?topic=148018.msg1075293#msg1075293