I tryed different contract addresses and keep getting this error:
"This contract has errors. Some ABI functions have incorrect format. Please input another address"
i tried it and it works, maybe there is something up with your address/code?
OP ,i noticed that your code does not check for leading/trailing spaces
also i have to refresh the page every time i make a typo, the page gets stuck with empty code until i refresh it.
good work.