I have a problem, my problem is that I installed a mod that changes Starbound's "core code" I think. Because when I uninstalled the mod my game kept on crashing. I heard that only the Devs can fix this, so what do I do, can I fix this or are the Devs truly the only ones who can fix this? The mod is "bk3k's Inventory"
What kind of errors are you having? The mod's description says, in big and on it's first line I'd believe for you to make your characters work again, you'd have to edit your .player file