If your PC's time doesn't match the server's, activation will fail.
first to ensure the data is refreshed before trying to play offline again. Step-by-Step Troubleshooting gta v offline activation data could not be loaded
This is the most effective solution for both Steam and Epic Games versions. It forces the Rockstar Games Launcher to re-verify your activation data. Rockstar Games Launcher Account Information Delete Local Profile and confirm. Sign back in to your Social Club account. Launch the game while If your PC's time doesn't match the server's,