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. It said "Can't read or parse problem description" when I enter a problem, in the dashboard of the contest, I noticed this: . After feel hours, everything turns back to normal.

For more details: - mashup id is 274862 - I added it to a public group, contest link I have done: - Package the problem in polygon - Give access to 'codeforces' in polygon (proof) But seems like doesn't work. Did I do anything wrong? Thanks.