Matlab online - Submission Failed

When submitting assignments through Matlab online ( https://matlab.mathworks.com/ ), I am getting below error. Please help

!! Submission failed: unexpected error: Error using urlreadwrite_legacy (line 96)

Error downloading URL. Your network connection may be down or your proxy settings improperly configured.

!! Please try again later.

Answer 1

[Mary]

this has been discussed here:

Error using urlwriteread. Error downloading URL. - MATLAB Answers - MATLAB Central (mathworks.com)

"if you have not figured out, then try new zip file. It's named "ex1-ex8-matlab" now. You can get that in 2nd week course. this worked for me"

[Mohamed Younes]

I still face this issue and the link contains another links which is broken and both have no solutions