I'm getting the following error when I boot up the game -

Object "QS_cloth_BazraRing" not found for dialogue type Topic
Info "EMPTY"

How can I fix it?

Inferno Island -

http://mw.modhistory.com/download-15-3833

try replacing dialog id 6283154272778622422 line this way:

; fixed /abot Player->RemoveItem, "QS_cloth_BazraRing", 1
Player->RemoveItem "QS_cloth_BazraAmulet" 1

Sorry not sure how to do that, could you explain a bit more?

Open Enchanted Editor, open Inferno Island mod, in left column, find Dialogue, click it, find line labeled 6283154272778622422, click it, in the fields that appear on right side, find the one that contains "Player->RemoveItem, "QS_cloth_BazraRing", 1" and replace it with what abot suggested. Click save and then close EE.