Cannot load the module

Hi, as shown in picture, the module can’t load, I cannot resume my learning. I have tried to use Edge, Chrome and Firefox in Windows system but all of them failed to load these modules. I am currently located in China and I trued use VPN but it also fails. I don’t think it is the problem of the internet, since these modules can be loaded on my phone in the same internet connection. I don’t know what happens here, can you help me fix this? I really need this.

Try refreshing the page. You can also go the syllabus then press resume path.