I have got a Virtual dedicated server and am having a strange problem, I decided to reprovision it to upgrade operating system from red hat 4 to red hat 7, the first time I reprovisioned it, it didnt even work almost seemed like DNS was wrong but they wernt. The second time I reprovisioned it and for some reason it wasnt parsing PHP and kept crashing, I have set up loads of VDS before and never come across this kind of problem before. I have done it once more but my site has been down for 3 days now and its going to start hurting me in Google soon, also I have to upload a couple of Gb of data each time before it will work.
Not really sure to understand what's happening. Are you reloading the OS for your VPS? And now it's not working? Do you have any control panel for vps management?