Was playing till i reached floor 2 and was running out of water.
By that time i thought it would be a good idea to try start over by hitting the restart button in the game.
The button didnt respond so i thought it was broken and shut the game down and started it back up.
After that the game was looking like it was already restarted but no dialogue from the girl when you started the game.
Also the pickaxe i started with was a Rusty pickaxe, but after i got the iron ore i needed to upgrade my pickaxe it only showed upgrades for Iron Pickaxe.
Could not upgrade my pickaxe because of it, so the only way to actually reset progress was to remove appdata of the game.