My weapon disappeared?!?!

[Sakurasou]

Hello I'm back after a few month break only to find that my weapon is gone completely. I don't remember the name but I bought the keys off the shop to open a box every cooldown to get materials to upgrade during some event. Now all that money is wasted... did they remove those weapons? 

[Belido]

this sounds odd, I don't think any weapon should dissappear without a trace. But your money is kind of wasted anyway, as  you now are able to get up to thornbreaker 6 with solor energies and even further with snowballs from event.