It uses the texture Red_Glow3.blp
. This is a base game texture, so you don't need to import it - remove the import from your map and the explosion should look like an explosion again.
The texture uploaded with the model is not the same size as the original Red_Glow3.blp
, nor is it red or a glow, because it's plain white.
I am not sure if this is how the model was uploaded, or perhaps it was bundled together later for some reason (e.g. Reforged and mismatched extensions).