Hey there,
Hm, it seems like your server block my current IP address 175.139.129.95 , you can take a look of my attached screenshot below.
I can pass 100% installation but after it auto refresh the page then it show me this error :
Your IP Address Has Been Blocked.
The firewall has flagged your IP address, but don't worry!
Dear Sir / Madam,
Your IP is temporarily blocked for security reasons.
Please contact us at info@italiangenealogy.com if you believe this is a false alert.
Sorry for the inconvenience,
Administrator
WHAT NOW?
After that, I was unable to access this page ->
http://www.yourdomain.com/administrator/index.php?option=com_installer&view=manage
Please advise.
Perhaps you can try install again, it should work fine now.