In the schedule it is clearly written that the solution deadline should be June 9, 2019 (23:59 GMT). However, it's still before 23:59, and I can't submit new solutions anymore since ~22 GMT because it's "too late for solution upload". It's unfair (for example because of that I didn't upload all of my solutions that I wanted to upload today).
+1, literally wasted 2 hours of the sunday night to tune the hyperparameters only to see that the competition has ended before schedule
This was indeed an error, for which we are sorry.
For this reason, we decided to reopen the submission system until the end of this day.