unfortunately, players can't equip items to their Model, Trail, Hat or Accessory slots.
This issue first occured after the latest big TTT2 update, we use Pointshop on our TTT server.
L 12/25/2023 - 21:13:06: Lua Error:
addons/libk/lua/libk/server/sv_libk_database.lua:171: attempt to call local 'callback' (a table value)
1: Query (sqlText = "UPDATE `kinv_items` SET `itemclass` = 'KInventory.Items.91',`data` = '{\"purchaseData\":{\"amount\":0.0,\"time\":1702416149.0,\"currency\":\"points\",\"origin\":\"LUA\"}}',`itempersistence_id` = '91',`inventory_id` = NULL WHERE `id` = '119'", callback = _R._LOADED.team:callback, errorCallback = function (error), blocking = nil) [addons/libk/lua/libk/server/sv_libk_database.lua: 171]
2: add (self = { _R._LOADED.team:LibK.TransactionSqlite.__instanceDict: 0xe9e84c72 }, sqlText = "UPDATE `kinv_items` SET `itemclass` = 'KInventory.Items.91',`data` = '{\"purchaseData\":{\"amount\":0.0,\"time\":1702416149.0,\"currency\":\"points\",\"origin\":\"LUA\"}}',`itempersistence_id` = '91',`inventory_id` = NULL WHERE `id` = '119'") [addons/libk/lua/libk/server/sv_database_transaction.lua: 77]
3: s (slot = { _R._LOADED.team:Pointshop2.EquipmentSlot.__ins
addons/libk/lua/libk/server/sv_libk_database.lua:171: attempt to call local 'callback' (a table value)
1: Query (sqlText = "UPDATE `kinv_items` SET `itemclass` = 'KInventory.Items.91',`data` = '{\"purchaseData\":{\"amount\":0.0,\"time\":1702416149.0,\"currency\":\"points\",\"origin\":\"LUA\"}}',`itempersistence_id` = '91',`inventory_id` = NULL WHERE `id` = '119'", callback = _R._LOADED.team:callback, errorCallback = function (error), blocking = nil) [addons/libk/lua/libk/server/sv_libk_database.lua: 171]
2: add (self = { _R._LOADED.team:LibK.TransactionSqlite.__instanceDict: 0xe9e84c72 }, sqlText = "UPDATE `kinv_items` SET `itemclass` = 'KInventory.Items.91',`data` = '{\"purchaseData\":{\"amount\":0.0,\"time\":1702416149.0,\"currency\":\"points\",\"origin\":\"LUA\"}}',`itempersistence_id` = '91',`inventory_id` = NULL WHERE `id` = '119'") [addons/libk/lua/libk/server/sv_database_transaction.lua: 77]
3: s (slot = { _R._LOADED.team:Pointshop2.EquipmentSlot.__instanceDict: 0xebb9feea }) [addons/poiLUA Error in Controller Pointshop2Controller action equipItem:
nil
And maybe it's also worth mentioning, that when I join the server, I get this error in the chat:

Hey there,
unfortunately, players can't equip items to their Model, Trail, Hat or Accessory slots.
This issue first occured after the latest big TTT2 update, we use Pointshop on our TTT server.
This is our collection: https://steamcommunity.com/sharedfiles/filedetails/?id=2791902327 (there are sub-collections with some little server addons and maps)
This is the lua error from the console when equipping a new playermodel:
And maybe it's also worth mentioning, that when I join the server, I get this error in the chat:
