An error popup appears while the game loop is running or when clicking something? Things don't work as they should or behave strangely?

Here is the place to report such bugs!

Clicking the "Copy" button in the top right of the error message box allows you to paste an error report which contains a serialized save. Feel free to post it in here, including the save means I can test from the same point you had reached.

Game saves do not contain any identifying information about the player's device or identity,  only their in-game choices.