Thanks! I recommend making sure you have the latest version (v1.04) and, if you are still able to press X to bring up the menu to exit the game, try reloading your file. Or just exit/restart the game.
If the problem still persists, you may also start a new game; please note, how the game runs may vary depending on the machine.
Also note, save files from previous versions also may not function with the current version.
The game was made for Windows 7 and above, and also uses HTML5, Javascript, and PIXI libraries; be sure your machine has no custom settings for those libraries.
Hope this helps