Multiple International Phone Inputs

I built a website for a client, but he asked that there has to be two different forms for submission, and while using the code I’m only able to make one work, but if I try to use it on two or more it stops working.

I have tried duplicating the code and changing the ID of the text box it selects, but it doesn’t work.

Is there a way to make them both work and also make the phone text bar longer?

Here is my site Read-Only: Webflow - GoIT website –JS Webinar CO (Published)