Ahh, I see. I am usually very careful when I upload my files, mostly because it takes a while for Construct 2 to prepare them for me, and much longer for Itch.io to upload my files, especially if the Internet connection suddenly stops :p
You're most likely going to find that both versions would play the same way, although you would have to close the game and restart it if you reach the 'Game Over' screen in the PC version, as otherwise the Stamina bar would remain invisible not matter what you do :/
Anyhow, I'll be uploading another version of the game within the next few weeks (or days, depending on how free I am) which would cover most of the glitches you found, while the tomes would most likely have an explanation to go along with them (as well as the signboards), since they're not supposed to grant any powers to CM (I did consider adding abilities before, but when I tried to implement a regular ability that unlocks after colliding with a powerup, it didn't work out :( ).