"nibrealui has been blocked from an action..." growl?

[Xepla]

Hi there, I'm trying to turn off growl on my hunter by right clicking the spell in the spellbook. However when I click it I get the message "nibrealui has been blocked from an action only available to the Blizzard UI. You can disable this addon and reload the UI."

[Grumpyrowley]

I've had the same trouble with the spell book, I find if you pull the spell on your bars you can use it as normal although I'm not sure if you can do this with pet abilities

[Gethe]

There should have been an error link in the chat. Could you click on that and post what it shows?

[Xepla]

Here is the error:

x1 [ADDON_ACTION_FORBIDDEN] AddOn 'nibRealUI' tried to call the protected function 'CastSpell()'.
Stack: ...e\RealUI_Bugs\Libs\!BugGrabber\BugGrabber.lua:573: in function <...e\RealUI_Bugs\Libs\!BugGrabber\BugGrabber.lua:573>
[C] in function 'CastSpell'
FrameXML\SpellBookFrame.lua:560: in function 'SpellButton_OnClick'
[string "*:OnClick"]:4: in function <[string "*:OnClick"]:1>
Time: 2017/11/20 14:49:26 Index: 1/1
Version: 8.1 r20e
Locals: