baught phone used given bad instructions dont have google verification

i baught zte prestige used and factory reset device.didnt know what to do and entered the last owners email now cant proceed because i dont know there password to there email. cant contact them . im an idiot what do i do?

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0