A defect exists where users aren't able to update from versions prior to 0.11.0.179 due to a lack of virtual drive space.
If you are attempting to upgrade from 0.10.0.110 to a newer version, you will need to de-register your server. Then, delete your current VM deployment and deploy a fresh VM.
Once completed you will be running VyprVPN Cloud 126.96.36.199, which has a larger virtual drive space. You will be able to upgrade to later versions from that build.
If you need any further assistance, please contact our 24/7 Customer Success Team, who would be glad to assist.