Error rolling on arcane shop table

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Describe the bug Try to add some scrolls to the merchant and get the next error.

Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'filter') [Detected 1 package: lootsheetnpc5e] at LootProcessor._getRandomSpell (LootProcessor.js:448) at LootProcessor.createScrollFromSpell (LootProcessor.js:499) at LootProcessor.preItemCreationDataManipulation (LootProcessor.js:432) at LootProcessor.buildItemData (LootProcessor.js:88) at async LootProcessor._addLootItem (LootProcessor.js:271) at async LootProcessor.addItemsToActor (LootProcessor.js:420)

To Reproduce Steps to reproduce the behavior:

1. Got to merchant sheet
2. Select Arcane shop
3. Click in update button and eventually get the error in console

Desktop (please complete the following information):

• OS: Windows 10
• Browser Foundry
• Version V9 build 269
• Module version LootsheetNPC5e 3.6.0

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An update: I tink i solve the issue modifying two files, but the scrolls are added as a feat, i down know if this should be correct?