Laravel Crypto Data Visualization

We currently require assistance with our Laravel application, designed to present cryptocurrency data visualization. The application is experiencing an issue where it's not showing market data and returning an invalid symbol error.

Specific requirements:

- Address and resolve the "invalid symbol" issue
- Ensure accurate data representation for the three main cryptocurrencies: Bitcoin (BTC), Ethereum (ETH), and Ripple (XRP)
- Overall, ensure the Laravel application is successfully visualizing and presenting crypto market data

Desired expertise:

- Proficiency in Laravel application management
- Experience with cryptocurrency market data
- Skilled in fixing data representation issues
- Strong understanding of data visualization techniques