Skyblock 2 Unable to open Chests

Hi,
I was playing skyblock two, and I had a lot of shops on my island. I decided to change my username again, like I have in the past. I tried to open the chests, but I was unable to open the ones that had my most recent username on it. Oddly, I was able to open the chests with the username before the last as the shop owner. Last time I had changed my username, I did not experience this, so I thought it might be something that was recently changed. I was wondering if there was a way to open the chests before the 30 days I would have to wait to change my username.

Thanks,
_FluffyPenguins_ (old: fluffypenguins25)

 

Shop signs are attached to a player's IGN, not their UUID. If you'd like to access your shops I suggest having a Mod+ assist you with removing the signs.
@Slevin
@Electric_Demon

 

I removed all the signs I could find.
Please message me if there is any more incase I missed any.
Thanks.