Apologies for the late response and for not being clear that I had already updated to the 3006 firmware (and thus couldn't enter the YazFi's menu system). Thanks for the solution, ExtremeFiretop - it worked perfectly.
As some folks are aware YazFi is no longer compatible with Asuswrt-Merlin 3006 series firmware. I would like to remove this AddOn but not sure how to that because it won't load to allow the removal. Is there an AMTM script that can remove it? Thank you!