Error Downloading these Courses!

[sahillangoo]

I'm Getting Error Downloading these Courses

Error:

• https://frontendmasters.com/courses/qwik/
• https://frontendmasters.com/courses/smacss/
• https://frontendmasters.com/courses/web-perf/
• https://frontendmasters.com/courses/interviewing-frontend/
• https://frontendmasters.com/courses/linux-command-line/
• https://frontendmasters.com/courses/ux-design-principles/
• https://frontendmasters.com/courses/react-performance/

Has anyone downloaded these courses?