Htc service pack error

[AC Question]

I have an htc512 andfor the last 2 days I have gotten sorry htc service pack has stopped unexpectedly......then I get the same warning about everything I cant click on anything on my phone games internet Google play store settings everything I click I get sorry it has stopped unexpectedly I have master reset my phone and it goes right back to doing the same warning it's getting annoying I want to have the service back on on the phone but not if it's broken