The Marni stones for the Elvia server areas where multiple players can get loot (Castle Ruins, Altar Imps) are still filled by last hitting the mobs, so the stones are filled much slower, as one mob counts only for one player.
Install the Black Desert Launcher if the game doesn't start.
The launcher will appear if it's installed.
If it doesn't, try to run your downloaded launcher.
1 Run BlackDesert_Installer_NAEU.exe to install the Black Desert launcher.
2 Start the game once installation is complete.
The Marni stones for the Elvia server areas where multiple players can get loot (Castle Ruins, Altar Imps) are still filled by last hitting the mobs, so the stones are filled much slower, as one mob counts only for one player.