built in apps deleted ?!?!

[AC Question]

hi i have a XGODY phone model G200 running android 5.1 i used app2sd to link my built in apps so it would save storage...well i factory reset my phone and deleted everything off my SD card without thinking of course...and...well... now some built in apps are not working like gmail and android keyboard i can not type anything as it says android keyboard unfortunatly stopped working how do i get these built in apps back as it will not let me type anything at all on the phone ?! please help me!!