Main.cpp size reduced to 0

this morning, after heavy load on server, my main.cpp (about 2200 lines of code) has bee reduced to 0 !
how to recover ?
thanks

Hi Georges,

We’ve already spoken in your support ticket, but I want to reply here to in case that helps other users.

You can read about the cause of the issue and how to request access to the most recent backup of your program here http://mbed.status.io/pages/incident/54469719c3190ae461000071/5c01453e9ed95204b4ab79a7

Thanks

Stephen Paulger