V1p3R_iOSJailbreak

I currently have a ipad 2,1 and it is jailbroken on ios 9.3.5 but i am getting a storage issue so i am unable to do anything in cydia. The device also has 7 gb of storage left. The error code is: sub-process/usr/libexec/cydia/cydia returned an error (2). I have a hunch that I have a hidden partition from coolbooter that was not removed and if i could, i would love to have a tool to tell me the volumes currently on the disk. Thanks in advance.

i have done some looking and for my situation, it is a storage issue.