Hi,
I checked the server and your account does not appear on the exceed-quota list. In fact you still have a good amount of space available (~60MB). If things are becoming too unstable at expt.pcibex.net, I suggest you start moving to the new farm. We will release a public announcement about it soon, but you can already check out https://farm.pcibex.net
Note that you’ll need to create a new account, and your experiments will not be automatically transferred to the new farm, but you can easily drag-and-drop zip archive versions of your projects
Jeremy