Good day!
We have a good team of web developers who are able to fix "Error: 500 JHmlJquery::token not found."
We have good knowledge in technologies requested in your project.
In area of web development our main specialization is LAMP stack of technologies (Linux, Apache, MySQL, PHP) but our developers have experience with Python, Node.js and .NET stack of technologies either.
Please, contact us in chat, and we can discuss all the points.