It says that blocktrail was acquired by BITMAIN, I wonder if this has anything to do with the blocking of your IP? however it opened for me without any problem.
No. Bitmain, has acquired a Blocktrail startup in July last year. So this IP issue has nothing to with it.
Site is working fine on my end.
There are 2 possible cases why your IP was banned:
1. Someone with similar IP/Range was using it to attack the site, as a result all similar IPs were banned.
2. It was an just an error and soon will be fixed.