When I try to click "Submit" after uploading my resume

When I try to click "Submit" after uploading my resume to "My Information" in "jobs.apple.com",

This message pops up ("Sorry - we are experiencing some technical difficulties. Please try again.").

My Resume is 88kb PDF file and I tried it by another computer, but still that message popped up again.

(I think this is website's problem, not my computer's problem or my resume's...)

Please Help me. I do not know why this is happening. Thank you in advance.