Spilled tea on right side of keyboard.

Laptop keyboards usually do not survive liquid spills - even in drainage hole business-class machines. With laptops, the keyboard ($-$$) usually acts as the crumple zone to protect the motherboard ($$$). The manufacturers would rather kill the keyboard over the motherboard, and I agree with that mindset. AT LEAST I can move the motherboard and base plate to a new upper case or just swap the keyboard out and be on my way. Head onto eBay and buy one just in case because the odds are very much against you. Acer didn't have chronic problems with this for years, so it probably isn't plastic welded in requiring an entire palmrest or JB-Weld.

What you need to do is take the laptop apart and clean the motherboard using this guide. If you have an ultrasonic cleaner that’s the absolute best way to clean water damage, but most people don’t have one at their disposal. In lieu of that, 99% IPA and an anti-static brush will work. To be absolutely sure, clean the entire board - even the parts you don’t suspect were part of the tea spill. We can’t help you find the guides needed without a model.

In addition to cleaning it, use this time to repaste the CPU and clean the dust bunnies out. Since you need to do a complete teardown on many Acer laptops to do this, getting it out of the way now is ideal. I don’t recommend Artic Silver 5 for laptops since it doesn’t seem to cure right for me (and many laptops are a pain to redo), so for this I’d buy Artic MX-4. Refer to this guide to see how to change it.