Ogre error "Ghostfire.particle"
Please locate your game folder called "Tiggs IT" and open it.
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Open the folder media.
Open the folder particles.
Look for the file ghostfire.particle and delete it.
ONLY THE .particle FILE, NOT THE .material OR .png FILE!
If this doesnt do it for you, deinstall the game, download the new game-installer file and install it again. That should fix it.