NRE console spam

this is spamming console: 

Failed to call hook 'OnEntityTakeDamage' on plugin 'BradleyDrops v1.1.11' (NullReferenceException: Object reference not set to an instance of an object)

at Oxide.Plugins.BradleyDrops.OnEntityTakeDamage (BradleyAPC bradley, HitInfo info) [0x00216] in <cfd1f88146f140f6b50b7d3224dac82e>:0

at Oxide.Plugins.BradleyDrops.DirectCallHook (System.String name, System.Object& ret, System.Object[] args) [0x005bd] in <cfd1f88146f140f6b50b7d3224dac82e>:0

at Oxide.Plugins.CSharpPlugin.InvokeMethod (Oxide.Core.Plugins.HookMethod method, System.Object[] args) [0x00079] in <cd9a02fd331347bd82d550bb1a9c8e9f>:0

at Oxide.Core.Plugins.CSPlugin.OnCallHook (System.String name, System.Object[] args) [0x000d8] in <b76ec77c47d1449e92b2baab8603843d>:0

at Oxide.Core.Plugins.Plugin.CallHook (System.String hook, System.Object[] args) [0x00060] in <b76ec77c47d1449e92b2baab8603843d>:0

Bradleys become invincible and stuck in place. 

Please give information about how and when this happens

A player called in 2 brads, was taking them, all of a sudden console started spamming this message, all of the tanks on the server glitched out and no longer moved or took damage, had to uber tool the tanks and reload the plugin. it happens every so often. 

had the tanks landed properly, did the player get a message in chat about not being able to damage them?

pretty sure they landed properly, i wasnt there for that, i just know he said they stopped taking damage and they were also stuck in place. they wouldnt take damage from me either so i had to uber tool  

But was there a message in chat about not being able to damage them? Has it happened again since?

oh no there was no message in chat, just they wouldnt take damage, its happened a few times but not since wipe. 

The only time they won't take damage which is controlled by my plugin is if they are still falling from the sky. But then a message would appear in chat, so either your player didn't see the message, or something outside the plugin was affecting it.

i know they dont take damage when falling, they were on the Ground taking damage, player killed them halfway, then the nre started spamming console, tanks stopped moving and taking damage. 

No need to be like that, You don't give a great deal of useful info when you report an issue. I need as much detail as possible otherwise its near impossible to help. I had to prise every bit of information about this issue out of you. I asked you a question, but you didn't answer it. I can only help you so much if you give me little to go on.

Changed Status from Pending to Can't Reproduce