resolve The data base format of the project is old. it can no longer be processed by Freelance. Delete the old pro
The data base format of the project is old. it can no longer be processed by Freelance. Delete the old project.
The way to handle an upgrade is described in the Getting Started manual in chapter 2.2 "Upgrade an existing version to the new version".
You do not directly access an old PRO file with a new tool. You export the project in the old tool, thus creating a CSV file, then install the new version and import that CSV file, creating a PRO file for the new tool.
In case you did not do this, you should first backup the old PRO file. Then install the old Freelance version (just the Engineering tool) on a PC or laptop, copy your old PRO file to there into the proj directory, open the PRO file in the old tool and do the export.
Then copy this CSV file (usually in the Export directory of the Freelance installation) to your PC / Laptop with the new Freelance version and do an import with the Engineering tool of the new version. Do a Check All in the P-Tree and save the PRO file over the old one (that might include deleting the old PRO file if you did not do this after the backup already).
You will have to do a "Load whole station" to all Controllers, gateways, and Freelance Operator stations to complete the upgrade.