I recently los all my private cloud projects....is there a way to get them back from your servers?

pretty much as title says....when I was loggin in totday all my priviously saved projects where gone from the cloud...are they wiped regularly if they are private? I did not export the .m5f2 files just the main.py from one single project I once exported as I was confident in the cloud...

oh gosh huge bummer

anyone experienced this too?