Details Lua Error LeechCalc

Message: ...rface\AddOns\Details_CalcLeech\Details_CalcLeech.lua:86: attempt to perform arithmetic on local 'leech' (a boolean value)
Time: 07/19/16 14:58:04
Count: 206
Stack: ...rface\AddOns\Details_CalcLeech\Details_CalcLeech.lua:86: in function <...rface\AddOns\Details_CalcLeech\Details_CalcLeech.lua:72>

Locals: self = <unnamed> {
 0 = <userdata>
}
event = "COMBAT_LOG_EVENT_UNFILTERED"
time = 1468965484.71
token = "SPELL_HEAL"
hidding = false
who_serial = "Player-3677-070C8AC5"
who_name = "Turkeyeyes-Garrosh"
who_flags = 1298
who_flags2 = 0
target_serial = "Player-3677-070C8AC5"
target_name = "Turkeyeyes-Garrosh"
target_flags = 1298
target_flags2 = 0
spellid = 143924
spellname = "Leech"
spelltype = 1
amount = 65
overhealing = 0
absorbed = 0
critical = false
multistrike = nil
is_shield = nil
healed = 65
total_leech = 0
(for index) = 3
(for limit) = 40
(for step) = 1
i = 3
name = "Shadowfel Infusion"
_ = ""
_ = "Interface\Icons\Spell_Shadow_SoulLeech_1"
_ = 0
_ = nil
_ = 10.017
_ = 535697.734
source = "player"
_ = false
_ = false
id = 184671
_ = false
_ = false
_ = true
leech = false
(*temporary) = <table> {
 Bunny = false
}
(*temporary) = "Bunny"
(*temporary) = "player"
(*temporary) = "attempt to perform arithmetic on local 'leech' (a boolean value)"
rosterLeechAmount = <table> {
 Bunny = false
}
calcLeech = <table> {
 Enabled = true
 __author = "Details! Team"
 combat = <table> {
 }
 OnDetailsEvent = <function> defined @Interface\AddOns\Details_CalcLeech\Details_CalcLeech.lua:172
 RegisterEvent = <function> defined @Interface\AddOns\Details\core\plugins.lua:265
 Frame = Details_CalcLeech {
 }
 __name = "Leech Trinket"
 OnEvent = <function> defined @Interface\AddOns\Details_CalcLeech\Details_CalcLeech.lua:165
 __version = "v1.1"
 __options = 1
 real_name = "DETAILS_PLUGIN_LEECH_TRINKET"
 __description = "Calculates the healing done by the trinket leech."
 db = <table> {
 }
 __enabled = true
 UnregisterEvent = <function> defined @Interface\AddOns\Details\core\plugins.lua:268
 __icon = "Interface\Icons\spell_shadow_lifedrain02"
}