Priests heal called "Heal" rank 2 and 3 are throwing out a Lua error when cast.
Does not throw errors with Rank 1.
EDIT Also Prayer of Healing rank 1 is throwing out errors.

Message: ...bs\LibClassicHealComm-1.0\LibClassicHealComm-1.0.lua:499: attempt to compare number with nil
Time: Sun Jun 2 03:47:05 2019
Count: 7
Stack: ...bs\LibClassicHealComm-1.0\LibClassicHealComm-1.0.lua:499: attempt to compare number with nil
...bs\LibClassicHealComm-1.0\LibClassicHealComm-1.0.lua:499: in function <...bs\LibClassicHealComm-1.0\LibClassicHealComm-1.0.lua:497>
...bs\LibClassicHealComm-1.0\LibClassicHealComm-1.0.lua:953: in function <...bs\LibClassicHealComm-1.0\LibClassicHealComm-1.0.lua:927>
...bs\LibClassicHealComm-1.0\LibClassicHealComm-1.0.lua:1642: in function `?'
...bs\LibClassicHealComm-1.0\LibClassicHealComm-1.0.lua:2037: in function <...bs\LibClassicHealComm-1.0\LibClassicHealComm-1.0.lua:2036>

Locals: level = nil
amount = 604
spellPower = 0
spModifier = 1
healModifier = 1
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = "attempt to compare number with nil"
playerLevel = 30