The maintenance has been completed. Please see below for some of the things you can expect from this recent update:
1. Fixed the bug that the Sky City cannot be signed up normally
2. Fixed the bug that the Sky City cannot show battle reports or shows incorrect reports
3. The AP consumption of the Yaso Peak is changed to 25
4. The recruitable system mercenaries is increased to 2
Sorry for any inconvenience and we appreciate your support! Have fun!