Error 52. Invalid argument value for <name> function. Argument <paramname> must be positive (and not Null).
Error 52. Invalid argument value for <name>() function. The function does not support <paramvalue> specified.

You attempted to pass a negative value as a parameter to a function that expects positive values or the function does not accept given value of parameter.

Sum( Close, -15 ); // error 52 - range must be positive