[26/8/2018 12:28:7] [Error - Spell Interface]
[26/8/2018 12:28:7] data/spells/scripts/support/magic wall rune.lua:onCastSpell
[26/8/2018 12:28:7] Description:
[26/8/2018 12:28:7] data/spells/scripts/support/magic wall rune.lua:24: attempt to concatenate a nil value
[26/8/2018 12:28:7] stack traceback:
[26/8/2018 12:28:7] data/spells/scripts/support/magic wall rune.lua:24: in function <data/spells/scripts/support/magic wall rune.lua:4>