i found my project named as temp and all my post processing work are gone any help ?,my scene changed it's name to temp and alot of post proscessing is gone any help ?

after a long day of work i opened the station now and i found all my work is gone and the project is named (temp) and my backup project as (temp2) anyone can help please ? ,i was working on final post processing yesterday and i saved then today when i opened the project i found the name was temp and another project as temp 2 and all my work for post processing was gone any help please ?