LSCache is not supported

When I check my site in this tool:

https://check.lscache.io/?host=https%3A%2F%2Fvutruso.com%2F

LSCache is not supported.

I really install Litespeed and Litespeed cache plugin and config correctly. But I got the above message.

How to fix it. Thank you so much.

I already see cache hit on your website, so its good

x-litespeed-cache hit