Website outlook crashed after activated the WP Fastest Cache plugin

Hi,

I have been using WP Fastest Cache plugin for 202 days. (https://prnt.sc/LHez7vRIGuJa)

This problem is occurred recently. I have tried to deactivate all unnecessary plugins and reactivate them one by one to test which one cause the problem. And find out it’s WP Fastest Cache.

If I deactivate WP Fastest Cache, the website outlook is normal. Here is the screenshot: https://prnt.sc/gtYYqoqrWhO2

Once I activate it, the outlook becomes: https://prnt.sc/0B-y4AO7H5bj

My wordpress version is 6.2.2. WP Fastest Cache version is 1.1.9. WP Fastest Cache premium version is 1.7.0.

Please help.

The page I need help with: [log in to see the link]