Such problems are usually related to connection errors between the reader device and the database and are therefore beyond our control. When a connection is re-established, the missing ski days or lift rides will be updated.
By refreshing your ski pass, you can update your missing data.
I am missing ski days from other areas:
If the ski pass is entered only for a certain area, only data from this one area will be displayed. If you were with the pass in another area, you must enter it also for the respective area.