Blocking website and only way to fix is disabling HTTPS scanning

There is this website I use to watch stuff, recently now it has been blocked due to JS:Obfuscated-GP [Trj] but i have been using the site even when i had AVG installed before now it has been blocking it and the only way for me to use this site was to disable https scanning and when i try to add an exception to the site it only works on one page of the site.