FE2CM: Error: Attempt to index nil with number 4

Hi! I have problem, iif i testing map i have error:

Can you help me?

This is script.

you misspelled btnFuncs

Ok, i fixed, but nothing has changed, lava is worth it and butFuncs don’t working.

You use “btnFunsc”, and it’s “btnFuncs”.

I fixed that but nothing haappened and water dont working.