12/16 07:48:44 | Failed to call hook 'CanDismountEntity' on plugin 'MyMiniCopter v0.6.0' (NullReferenceException: Object reference not set to an instance of an object)
at Oxide.Plugins.MyMiniCopter.DoLog (System.String message) [0x00000] in <faeccbfa4ce74cb6865a9a38714ebcb3>:0
at Oxide.Plugins.MyMiniCopter.CanDismountEntity (BasePlayer player, BaseMountable mountable) [0x00063] in <faeccbfa4ce74cb6865a9a38714ebcb3>:0
at Oxide.Plugins.MyMiniCopter.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00693] in <faeccbfa4ce74cb6865a9a38714ebcb3>:0
at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <87ce9ac9776a48658bc55eae6debe38b>:0
at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <18d4f19bbc844191b11ed9e69284d09b>:0
at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <18d4f19bbc844191b11ed9e69284d09b>:0

12/16 07:48:44 | Failed to call hook 'CanDismountEntity' on plugin 'MyMiniCopter v0.6.0' (NullReferenceException: Object reference not set to an instance of an object) at Oxide.Plugins.MyMiniCopter.DoLog (System.String message) [0x00000] in :0 at Oxide.Plugins.MyMiniCopter.CanDismountEntity (BasePlayer player, BaseMountable mountable) [0x00063] in :0 at Oxide.Plugins.MyMiniCopter.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x00693] in :0 at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <87ce9ac9776a48658bc55eae6debe38b>:0 at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <18d4f19bbc844191b11ed9e69284d09b>:0 at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <18d4f19bbc844191b11ed9e69284d09b>:0

Looks like you're using a different plugin called MyMiniCopter. That plugin was previously hosted on CodeFling but seems to have been taken down at the author's request. Not sure if it's being maintained anyere, but assuming not. I suggest you switch to using Spawn Heli. It shouldn't take much time to set it up.