I worked two weeks on a vidéo project for my YT channel and when i tried to open it this evening, i cannot 😱.
A pop up said the contents of the file cannot be read. Could you help me to save the project ?
First of all, you should always save incremental copies of your work - File-001, File-002, File-003, and so on. That way you can fall back to a previous version. If your single file has become corrupted then it is probably fubar. That said, (I assume you are using Express) look in C:\Users\<your username>\Documents\FXHOME\HitFilm Express\AutoSave and see if there is a file there to resurrect.
Other than that I would recommend contacting FXHome Support https://fxhome.com/questions/submit