Chosen Solution
what can I do? Is this a permanent damage?
Not good! You’ll need to shut the system fully down and disconnect the charger at least. If you can I would pop the bottom cover off and disconnect the battery making sure the connection is protected from re-connecting. Beer is nasty! It’s corrosive and as it has a lot of carbs its a great environment for mold to grow. You’ll need to find someone with the needed skills to pull the system apart to fully cleanup what entered.
