| Failed to call hook 'UpCommand' on plugin 'BuildingGrades v0.3.13' (NullReferenceException: Object reference not set to an instance of an object)

at Oxide.Plugins.BuildingGrades.GetTargetBuildingBlock (BasePlayer player) [0x000c0] in <df4a35825e2e48a38c86855f6b83e642>:0

at Oxide.Plugins.BuildingGrades.ChangeBuildingGrade (BasePlayer player, System.String[] args, System.Boolean increment) [0x0015c] in <df4a35825e2e48a38c86855f6b83e642>:0

at Oxide.Plugins.BuildingGrades.UpCommand (BasePlayer player, System.String command, System.String[] args) [0x00000] in <df4a35825e2e48a38c86855f6b83e642>:0

at Oxide.Plugins.BuildingGrades.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00299] in <df4a35825e2e48a38c86855f6b83e642>:0

at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <9affce1cd15c4ec183941adef8db1722>:0

at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <4452f821def6406d834e4149849fe7ea>:0

at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <4452f821def6406d834e4149849fe7ea>:0