Contributing would be great as i'm a sole developer for this bot.

You can help contribute by:

Translation language files (help with previous translations or make support for another language)
Optimization on files. (Know a better way on a function, make a pull request and I'll have a look)
Donating (Donating helps me stay motivated to providing open source code, that anyone can use)

To join the contributing team you can email at contact@flyabove.ml

Your mail should contain:

Your application type.
Your experience in JavaScript or any programming language (if applying as a contributor).
Your time zone.
Your working hours and when you are available.
Why do you want to join this project.
Why should we select you instead of someone else?

Note:

Mass sending emails on the given email address would lead your email id black listed.