http://dnbible7sqskwppgaqohboxz7u5kzffjzdx3lxzpjtt3s6tzeiytb5ad.onion/bible/operating-systems/tails/got_problems/index.html
Also try holding the power button down for 10 seconds till the computer turns off and then turn it on again to see if it works with the second boot. Still not solved? Research your problem. That means using a search engine and the search function of the /d/DarknetMarketsNoobs subdread to search for solutions for your problem. If that does not help you can make a post on /d/DarkNetMarketsNoobs but remember to give it a meaningful title...