Wondrous Tails "keep loading" bug

[OnceMore]

Date & Time: 9/11/2021
Frequency: Once
World name: Bahamut
Character name: Once More
Class/Level: Summoner/Lv80
Party or solo: solo
Area and coordinates: Idyllshire
Steps:
1. Take new Wondrous Tails after weekly renew, open it.
2. A loading icon keep showing on the middle of the quest section (12 boxes area)
3. Places that suppose to have contexts or pictures are all empty, such as quest section, Second Chance's number, left bottom area's contexts, label's number (keep showing 0/9), Reward List, etc.
4. I finished a 80Lv dungeon, still can receive message that I cleared a mission from it and currently have 8 points of Second Chance. I assume it is just a template's problem.
5. I rebooted the game and change language a few times, but the problem is still here.

Connection Specs
- Type of internet connection/provider: Broadband/-
- Modem maker/model number: -