Need Help with 1.3 store mod

[saint-michael]

i just install the ibstore for 1.3 but for some reason after I add an item and then go to to the store and click on it

 

I get this error

 

Fatal error: Call to undefined function: in_permarray() in /home/shodav/public_html/muforum/sources/store/store.php on line 1033

 

what would cause this?

[Ashoat]

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