tsm error

Message: ...erface\AddOns\TradeSkillMaster\Core\Lib\ItemInfo.lua:138: attempt to perform arithmetic on local 'b1' (a nil value)
Time: 01/04/19 01:27:14 (1240441383)
Client: 8.1.0
Locale: enUS
Combat: false
Error Count: 1
Stack Trace:
    TSM\Core\Lib\ItemInfo.lua:138: <OnInitialize>
        build = "8.1.0"
        revision = "28833"
        names = {
          1 = "Skettis Chestpiece of the Fireflash"
          2 = "Skettis Chestpiece"
          3 = "Eternal Sarong of the Quickblade"
          4 = "Eternal Sarong"
          5 = "Razorsong Bow of the Fireflash"
          6 = "Razorsong Bow"
          7 = "Champion's Bracers of the Quickblade"
          8 = "Champion's Bracers"
          9 = "Windchanneller's Leggings of the Fireflash"
          10 = "Windchanneller's Leggings"
          11 = "Nesingwary Longrifle of the Fireflash"
          12 = "Nesingwary Longrifle"
          13 = "Wendigo Legguards of the Quickblade"
          14 = "Wendigo Legguards"
          15 = "Valdisdall Helm of the Peerless"
          16 = "Valdisdall Helm"
          17 = "Sorcerer Robe of the Quickblade"
          18 = "Sorcerer Robe"
          19 = "Necropolis Helm of the Quickblade"
          20 = "Necropolis Helm"
          21 = "Thrallmar War Hammer of the Aurora"
          22 = "Thrallmar War Hammer"
          23 = "Potent Helmet of the Aurora"
          24 = "Potent Helmet"
          25 = "Jazeraint Boots of the Quickblade"
          26 = "Jazeraint Boots"
          27 = "Big-Boar Battle Rifle of the Fireflash"
          28 = "Big-Boar Battle Rifle"
          29 = "Talonguard Gloves of the Aurora"
          30 = "Talonguard Gloves"
          31 = "Talonguard Gloves of the Fireflash"
          32 = "Bonecaster's Cape of the Aurora"
          33 = "Bonecaster's Cape"
          34 = "Embersilk Cloth"
          35 = "Bolt of Embersilk Cloth"
          36 = "Bolt of Windwool Cloth"
          37 = "Windwool Cloth"
          38 = "Spirit of Harmony"
          39 = "Imperial Silk"
          40 = "Grinder"
          41 = "Pocket Reaver"
          42 = "Phoenix Hatchling"
          43 = "Ghastly Kid"
          44 = "Snobold Runt"
          45 = "Tainted Waveling"
          46 = "Tiny Direhorn"
          47 = "Silver Dragonhawk Hatchling"
          48 = "Ominous Flame"
          49 = "Leaping Hatchling"
          50 = "Ashstone Core"
          51 = "Wicker Pup"
          52 = "Scraps"
          53 = "Hungering Claw"
          54 = "Azure Crane Chick"
          55 = "Tonguelasher"
          56 = "Chuck"
          57 = "Hippogryph Hatchling"
          58 = "Boneshard"
          59 = "Hyjal Wisp"
          60 = "Deviate Hatchling"
          61 = "Nightshade Sproutling"
          62 = "Imperial Moth"
          63 = "Bloodstone Tunneler"
          64 = "Tiny White Carp"
          65 = "Pterrordax Hatchling"
          66 = "Infernal Pyreclaw"
          67 = "Hyacinth Macaw"
          68 = "Stormborne Whelpling"
          69 = "Enchanted Torch"
          70 = "Blackfuse Bombling"
          71 = "Frigid Frostling"
          72 = "Filthy Slime"
          73 = "Spectral Tiger Cub"
          74 = "Tinder Pup"
          75 = "Thistleleaf Adventurer"
          76 = "Dusty Sporewing"
          77 = "Guardian Cobra Hatchling"
          78 = "Eye of Inquisition"
          79 = "Ranishu Runt"
          80 = "Fetid Waveling"
          81 = "Snowshoe Rabbit"
          82 = "Wood Frog"
          83 = "Dibbler"
          84 = "Viscous Horror"
          85 = "Terrible Turnip"
          86 = "Albino Snake"
          87 = "Pandaren Water Spirit"
          88 = "Sky Fry"
          89 = "White Tickbird Hatchling"
          90 = "Winter Rageling"
          91 = "Teeny Titan Orb"
          92 = "Thunderscale Whelpling"
          93 = "Ghost Shark"
          94 = "Discarded Experiment"
          95 = "Sea Calf"
          96 = "Stitched Pup"
          97 = "Spawn of G'nathus"
          98 = "Bloodthorn Hatchling"
          99 = "Craghoof Kid"
          100 = "Black Tabby Cat"
          101 = "Nether Ray Fry"
          102 = "Ikky"
          103 = "Scabby"
          104 = "Gooey Sha-ling"
          105 = "Eye of the Legion"
          106 = "Teldrassil Sproutling"
          107 = "Mr. Grubbs"
          108 = "White Kitten"
          109 = "Risen Saber Kitten"
          110 = "Gilnean Raven"
          111 = "Laughing Stonekin"
          112 = "Blue Clockwork Rocket Bot"
          113 = "Netherspawn, Spawn of Netherspawn"
          114 = "Restored Revenant"
          115 = "Black Kingsnake"
          116 = "Dark Whelpling"
          117 = "Fozling"
          118 = "Muskflank Calfling"
          119 = "Land Shark"
          120 = "Emmigosa"
          121 = "Fledgling Warden Owl"
          122 = "Lesser Voidcaller"
          123 = "Everliving Spore"
          124 = "Sentinel's Companion"
          125 = "Menagerie Custodian"
          126 = "Sanctum Cub"
          127 = "Crimson Lasher"
          128 = "Fel Piglet"
          129 = "Imperial Silkworm"
          130 = "Sneaky Marmot"
          131 = "Elwynn Lamb"
          132 = "Zandalari Anklerender"
          133 = "Frostwolf Ghostpup"
          134 = "Void Jelly"
          135 = "Crazy Carrot"
          136 = "Calico Cat"
          137 = "Thaumaturgical Piglet"
          138 = "Playful Frostkin"
          139 = "Ancient Nest Guardian"
          140 = "Rustberg Gull"
          141 = "Iron Starlette"
          142 = "Fiendish Imp"
          143 = "Son of Sethe"
          144 = "Son of Animus"
          145 = "Shadefeather Hatchling"
          146 = "Greatwing Macaw"
          147 = "Periwinkle Calf"
          148 = "Lifelike Toad"
          149 = "Enchanted Broom"
          150 = "Tinytron"
          151 = "Crispin"
          152 = "Snapper"
          153 = "Ash'ana"
          154 = "E
    TSM\Core\Lib\Addon.lua:36: <DoInitialize>
        eventStartTime = 1240439911.166470
        addon = {
          OnDisable@TSM\Core\Lib\ItemInfo.lua:173
          OnInitialize@TSM\Core\Lib\ItemInfo.lua:97
          ItemNameToItemString@TSM\Core\Lib\ItemInfo.lua:250
          OnEnable@TSM\Core\Lib\ItemInfo.lua:166
          name = "ItemInfo"
          GetDBForJoin@TSM\Core\Lib\ItemInfo.lua:271
          StoreItemInfoByLink@TSM\Core\Lib\ItemInfo.lua:226
          StoreItemName@TSM\Core\Lib\ItemInfo.lua:219
        }
        addonStartTime = 1240440064.428610
        private = {
          totalInitializeTime = 0
          eventFrames = {}
          enableQueue = {}
          totalEnableTime = 0
          initializeQueue = {}
          disableQueue = {}
          addonLookup = {}
        }
        MAX_TIME_PER_EVENT_MS = 12000
        TIME_WARNING_THRESHOLD_MS = 20
        TSM = {}
    TSM\Core\Lib\Addon.lua:80: <Addon.lua:78>
        self = <unnamed> {
          0 = <userdata>
        }
        event = "ADDON_LOADED"
        arg = "TradeSkillMaster"
        private = {
          totalInitializeTime = 0
          eventFrames = {}
          enableQueue = {}
          totalEnableTime = 0
          initializeQueue = {}
          disableQueue = {}
          addonLookup = {}
        }
        TSM = {}
Temp Table Info:
  [1] TSM\Core\Lib\Delay.lua:65 -> TSM\Core\Lib\Sync\RPC.lua:28
  [1] TSM\Core\Lib\Delay.lua:65 -> TSM\Core\Lib\Sync\Connection.lua:205
  [1] TSM\Core\Lib\Database\Database.lua:358 -> TSM\Core\Lib\ItemInfo.lua:131
  [1] TSM\Core\Lib\Database\Database.lua:360 -> TSM\Core\Lib\ItemInfo.lua:131
  [1] TSM\Core\Lib\Delay.lua:65 -> TSM\Core\Lib\ItemInfo.lua:608
Object Pool Info:
  DATABASE_QUERIES (2 created, 2 in use)
    <none>
  EXPIRED_AUCTION_TASK (0 created, 0 in use)
    <none>
  COOLDOWN_TASK (0 created, 0 in use)
    <none>
  EXPIRING_MAIL_TASK (0 created, 0 in use)
    <none>
  GATHERING_ALT_TASK (0 created, 0 in use)
    <none>
  DATABASE_QUERY_RESULT_ROWS (10 created, 10 in use)
    [10] ???
  TABLE_ROWS (0 created, 0 in use)
    <none>
  DATABASE_QUERY_CLAUSES (2 created, 2 in use)
    <none>
TSM Thread Info:
    empty result
TSM Debug Log:
    01:27:12.674 [INFO:127] Imported 47235 items worth of data
    01:27:12.532 [WARN:39] OnInitialize (Inventory) took 68.15ms
    01:27:12.462 [WARN:39] OnInitialize (TradeSkillMaster) took 59.49ms
Addons:
    TSM (v4.6.13)