First check if the number of input parameters is correct.
Then, for parameter names, you should use the original names, but they are not actually visible. They look like variable names - only latin letters and numbers, no empty space. What you see, for example "Applied Price" is not the real name. In the code you have something like this:
input ENUM_APPLIED_PRICE AppliedPrice = PRICE_TYPICAL; // Applied Price
I'm not sure about "AppliedPrice", because this exists in the source code.
ENUM_APPLIED_PRICE is the data type, also known as enumeration, which is some kind of integer data type, but not exactly. You can use "int" anyway, I think there will be no problem.
PRICE_TYPICAL is the name of one predefined constant that has value of 5. No, "Open price" doesn't mean nothing here.
Here is about the ENUM_APPLIED_PRICE enumeration: https://docs.mql4.com/constants/indicat ... price_enum
Parameter values must be correct as well. For example "Open price" is a string value, it is not an "int" or ENUM_APPLIED_PRICE value. You can use PRICE_TYPICAL or even 5 here, but not "Open price" or any other non-numeric value.
The next thing is the data types, but I don't think this is the problem here. Yes, in the indicator each input parameter probably have different data type (or enumeration), but when you use the indicator form the EA, there should be no problem to use "int" instead of enumeration that is in nature an integer value.
