If you've recently encountered issues with the mining web-app on Nulled, you're not the only one. I tried resetting the cache, completely renewing the website, logging out and in, view options in the settings but nothing came to a result until now. If your mining pool doesn't load, or you can't click 'Start mining', you either have an ad-blocking service enabled or probably a Tampermonkey code which blocks the code. The reason why for example Ublockdisables mining pools is to prevent silent mining when you're on a website. You can start mining by whitelisting Nulledbb.com, or turning it off specifically for Nulled.