Board Thread:Questions and Answers/@comment-32721267-20170730024838/@comment-26042064-20180905115526

you can try to message PONOS via e-mail for the HGT error fix.

The possible problem with that is either A) really bad signal for game if connected, B) change in timezones which is unlikely unless timetravelling or C) side-effect from time-travelling.

Just tell PONOS that you opened the game and you saw that HGT error on screen and your daily stages are now missing. They'll help out easily.