[BUG] Cannot buy warband bank tab

[mike-robertson]

What version number you are using? 3.11.01

What game client are you playing? Retail, Wrath, Classic / Live, PTR, Beta Retail

What language is the game client set to? English

Describe the bug Attempting to purchase a tab for warband bank fails and results in the following error:

4x [ADDON_ACTION_FORBIDDEN] AddOn 'ArkInventory' tried to call the protected function 'PurchaseBankTab()'.
[string "@!BugGrabber/BugGrabber.lua"]:485: in function <!BugGrabber/BugGrabber.lua:485>
[string "=[C]"]: in function `PurchaseBankTab'
[string "@Blizzard_UIPanels_Game/Mainline/BankFrame.lua"]:688: in function `OnAccept'
[string "@Blizzard_StaticPopup/Mainline/StaticPopup.lua"]:1016: in function `StaticPopup_OnClick'
[string "*StaticPopup.xml:23_OnClick"]:1: in function <[string "*StaticPopup.xml:23_OnClick"]:1>
Locals:
_ = Frame {
}
event = "ADDON_ACTION_FORBIDDEN"
events = <table> {
}

To Reproduce Attempt to buy a warband bank tab

Screenshots If applicable, add screenshots to help explain your problem.

Additional context Not a huge issue if you already have a warband bank tab, but took me a minute to realize what was going on when I was first trying to purchase one (disabling addon allowed me to purchase one).