MacBook Pro 13 turns off while loading after tea spill

Hey there! I accidentally spilled some tea to my Macbook Pro 13 (2017, Touchbar). There was a liquid near the On/Off button, the Touchbar and the upper right corner of the keyboard.

I immediately wiped the water off from the keyboard, and, as long as it was still working, I continued using it (I realised later that it was a big mistake). After 5 minutes of usage it turned off and now it turns off every time when I switch it on - it shows the Apple logo and turns off.

Can anybody suggest, what can be the problem?

P.S. I took it to the repair center in my country (Uzbekistan) the next day, but it has been a week since then and they still can't recognize the problem. They immediately disconnected the battery though…