I need some help. Whenever I select 'New Game' I get an error "Unable to find file: Graphics/Tilesets/Inside_C
that's strange! i've never gotten a comment or error like that (that i remember)...
the only thing i can think of is that maybe you don't have the RTP installed.
https://www.rpgmakerweb.com/run-time-package
try installing the vx ace rtp and try running the game again and let me know if that worked!