Default need help pls cand do nothing more :(

What can I do 2 weeks ago I rooted my zoo 998 phone and installed freedom etc today suddenly. Play store stopped working can't login I tried factory resett. Date and time clear catch everything. I downloaded root explorer but when I went to delete the hosts or edit the hosts it says so topped working and can't edit nothing please what can I do I really apriciate if someone can help me