What programming language and technology should be chosen for writing an Expert Advisor program?

Question

Programming

It is necessary to write a program that will work according to the following principle:
1. Numeric values ​​are entered in 8 fields
2. Each field is assigned a specific value that will be pre-set in variables (about 40 different ones)
3. Depending on the combination of 8 values, a certain result will be displayed on the screen (about 60 possible results will be set in advance) if the desired result is not set, an error will be displayed.
4. It is necessary to organize the storage of all data in the database.
5. The program must run on Windows, but the data entry fields will be located on the web resource.

Google provides the following PLs for implementation:
1. C++
2. C#
3. Java
4. Python
5. R

What is the best language for developing this application?
Which PL is the easiest to learn at the implementation level of such a program? Or at least its test version?

P.S. I have only basic knowledge of layout and have never faced such tasks. I study programming exclusively for myself.

In advance, I apologize for the possibly incorrect wording of the questions or the description of the program. Thank you!

Answer 1

Front-end component of the project:
1-3 requirements will be fulfilled by an html-form made up on the knee with logic elements in JavaScript, even without vue.
5 requirement - in general, this is any browser.
Backend component of the project:
4th requirement - you can use the MySQL database and PHP server, which are undemanding to the developer's qualifications, to implement the simplest logic for accessing this database.