mcMMO-Dev/mcMMO — pull request #2340 by Harry5573 (2014-10-30 23:48:09+00:00)
Title: Fix a very old bug where mcMMO does not read the config correctly,

This should be "DamageModifier" not "DamagerModifier.". As seen here https://github.com/mcMMO-Dev/mcMMO/blob/dbc7b98b0d2d7793c20b6dd1e5ee2ac7aadc8fd2/src/main/resources/advanced.yml#L140 . Thanks to @matagin for pointing this out.