We are currently experiencing some issues with the optil system. The problem was first reported yesterday. According to optil, they ran a system update. We are in contact with the optil team. Unfortunately, there is a public holiday on May 1st and May 3rd in Poland, so we might get answers not before Monday.
In order to reduce the effect on PACE submissions as much as possible, we extend the deadline for the duration when submission was impossible until the problem is resolved.