Only scenario I can think up of where that could possibly happen is if you aren't on the character that put that item up.
Log onto your Zangusu character and try claiming the CR?
If that doesn't work, then you might have too much CR on your character, try stuffing some into the storage.
If none of those work, I'll translate the message for you. (I'm not Korean, so typing out the message takes a while for me :x)
By the way, you can get help faster on our Discord chat: https://discord.gg/0S3aWQEkIlX1ueBo
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