App crashes with BLE

MIT App Inventor Help
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1

Hi. I have a problem with simple BLE data sending to ESP. When I press button "MakeDrink1" the phone app crashes and I dont know why. I am sending other data through BLE (strings) and it all works correctly so I dont know what is the problem here.
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2

I even changed it and it still crashes. The code on the left works like it shoud, and the code on the right crashes the app

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image1274×559 57.5 KB

3

use adb logcat to figure out what't the reason for crashing.

4

Show all blocks and variables...