@Francisco_Julian_Mar We received your project and calibration files. It looks like this project was created in an earlier version of Depthkit than v0.6.0, so there should be another JSON in the _migrations folder.
To restore your project, first uninstall Depthkit 0.6.0, and reinstall Depthkit 0.5.12 using the installer found on our website. Do not open your project yet.
Before you open your project, replace the project JSON with the pre-migration version. To do so, archive the current dkproject.json in your project’s root directory by renaming it, or moving it to a different folder. Go into the _migrations folder and copy the backup JSON there to the root folder of the project, and rename it to dkproject.json
Depthkit Studio Multicam Calibrations: It looks from the project you sent us that you don’t have any multicam calibrations, but if you are restoring a project with a multicam calibrations, you’ll have to do the same archive-and-replace process with the JSONs found in the calibration folder.
Then try opening your project. Let us know if this restores your project.