Suddenly my volumes can't attach

Hello there,

I've got 2 persistent volumes on my cluster, and suddenly both of them are failing to attach:

- AttachVolume.Attach failed for volume "pvc-535d0df8-9473-493a-9630-9aef0f2bfcf7" : rpc error: code = Internal desc = [ControllerPublishVolume] failed to get device path of attached volume : can not get device path of volume pvc-535d0df8-9473-493a-9630-9aef0f2bfcf7, its status is detaching

- Volume failed with error failed to attach
54cc907b-6e96-4124-b0bd-09196c1b6539 volume to
b647b9c2-0dc3-4303-872f-39d874c867e1 compute: Bad request with: [POST
https://dfw.servers.api.rackspacecloud.com/v2/1339069/servers/b647b9c2-0d\\
c3-4303-872f-39d874c867e1/os-volume_attachments], error message:
{\"badRequest\": {\"message\": \"Invalid volume: volume
'54cc907b-6e96-4124-b0bd-09196c1b6539' status must be 'available'.
Currently in 'in-use'\", \"code\": 400}}"

After debugging, it doesn't look like its on my side but rather the volume that is wrongly listed as in-use. How can I reset this?