As Andre and I have already stated DO NOT MESS with your file systems. as Andre stated post the output of ls - lisa to enable us to advise on how to move forward. You will need a little more space in your datastore than the size of your original disk to commit a single snapshot, you have two I am not sure of the size of your original disk, but you will need the size of the original disk plus the size of your two snapshots and the rest of your machine in available space in your data store.
if that is not available then there are other options. but first show the output of that command please.