Shotcut cant download viedeo and now its gone?

Hello Shotcut Community
i made a Complication about a game it tooked 2 hours
then i deleted most of the clips
then i finished everything so its perfect and tryed to download it.
but there was a message because i dindt had much storage space,
i closed it and opened it again, thinking it would say if i want to save it
but i dindt sayed it,
How can i get my Video back???

shotcut_2022-06-21_15-43-44
When you close Shotcut you are given 3 options.
If you chose “No”, and you didn’t previously save your project, it is gone.