Hi, I created some mashup contests via polygon link about 2 weeks ago, everything is fine at that moment.

But in the past 2-3 days, especially while codeforces having a contest, my mashups seem to be failed (right now it's failed). It said "Can't read or parse problem description" when I enter a problem. At the dashboard page of the contest, I noticed this: .

But after feel hours, everything turns back to normal.

For more details:

• mashup id is 274862

• I added it to a public group, contest link. Right now many problems in that mashup are not accessible (proof)

I have done:

• Create package

• Give access to 'codeforces' in polygon

(proof)

But seems like doesn't work.

Did I do anything wrong? Thanks.