Coupon Error

i have a coupon code name ” STAR5000 “, which will be apply on minimum spend of 5000 INR, but when i use ” YITH Woo Commerce Frequently Bought Together (Premium) “, this plugin make its own coupon for discount and i can not able to apply my own coupon over it, when i try to add coupon its show ” Coupon applied successfully ” but it wasn’t. plz check and help me

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