Error when opening

Hi.

I've already tried every method.

- shift when opening the software

- %AppData% _old

- %ApData% deleting the kdenlive file

- Installing the lastest version

- Task Manager searching for kdenlive.exe or melt.exe

Kdenlive works fine for a while, I hit save after every action, then when I'm deleting tracks it suddenly freezes.

I've tried to open the kdenlive files I saved (I saved 3 different ones just in case) and each one shows "Error when opening", and it says I don't have any backups.

Has anybody experienced this ? If so what's a solution.

I've already done the same project twice today, I'm not starting a 3rd attempt without a guarantee that my work won't be lost.

If there are no solutions, please feel free to recommend another software.