How to integrate messenger bot on vue.js based website ?

Hello
I am facing a problem for my website named jogaan.com
For the purpose of integrate of messenger bot to my website I have generated customer chat code from setting of my Facebook page. I successfully created the code and send Email instructions to my web developers.
My web developer implement the code and tell me that the code is not working. The reason he shows me that the messenger bot code is java script and our website is vue.js based.
I don't understand what actually he explained....

How to integrate messenger bot on vue.js based website ?

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