Date & Time: 08.03.19, 19:05(ongoing)
Frequency: Ongoing
World name: Omega
Character name: Junko Konno
Retainer name: N/A
NPC name: Slafborn
Monster name: N/A
Class/Level: White mage/51
Party or solo: Solo
In-game time: Ongoing
Area and coordinates: Mor Dhona/Revenant's Toll; x:21.9 y:7.8
Housing: N/A

Steps:
1. Accepted the quest "Rock-solid Protection" while progressing through the story.
2. Talked to Bibimu and did the Duty "The Sunken Temple of Qarn".
3. Obtained the wardstone and delivered it to Slafborn.
4. After handing over the wardstone, Slafborn tells me to travel to the Sunken Temple of Qarn and obtain a wardstone(same questtext as shown before)
5. Unable to abandon the Quest to try again.
6. Nothing in my "Key items" menu.
7. Unable to obtain another wardstone from doing The Sunken Temple of Qarn again.
8. Unable to talk to Bibimu again.
9. Quest shows as completed in the quest log.
10. Logging on and off doesn't do anything.
11. GM told me that this isn't something he could help me with and to post my issue here.

Screenshots
https://puu.sh/CXhIp/38a4494172.jpg
https://puu.sh/CXhJr/180ad949a0.jpg
https://puu.sh/CXhJ2/17a614ba92.jpg
https://puu.sh/CXhQS/5130f8491a.jpg

Connection Specs
- Type of internet connection/provider: not sure(Ethernet)/ Salzburg AG
- Modem maker/model number: Casio EPC3212

■ PC Specs
Graphics Card: NVIDIA GeForce GTX 980
Language: Japanese(Game is running in english)

I hope this is sufficient information to reset or complete my quest because i'm unable to do so and since this is a story quest, i'm pretty much stuck.
If not, PLEASE contact me and i'll provide everything i can.