You need to root your device first than use Link2SD which automatically sends all downloaded apps/games to SD card.
Checkout my channel for all those requirements: www.youtube.com/TechnoGenuine
Hello bro, regarding your issue is because you didn't flash TWRP that caused this issue.
Anyway to fix this problem follow this video - https://www.youtube.com/watch?v=cyCileqUVFQ
Hello bro you can fix this problem easily. Just follow this video and it should fix the problem. Just make sure to download the appropriate Stock ROM according to your model number + region - https://www.youtube.com/watch?v=cyCileqUVFQ