'->' operator requires a function signature on the LHS in math at line 2, pos 11

sum(list) HERE>> -> reduce(list, _a+_, 0);

error when evaluating expression
failed to add app overlay app

getting this error whenever i try to /script load overlay

Works here on the latest 1.20.1 version, what version are you on?

1.20.1

same error if i try load a few other apps