Experiences with Pirelli P Zero 21 inch

Hi, I was on a road earlier and fell into a pothole it was rainy and dark, shortly afterwards I heard sounds from the front left there also came the message in BC tire pressure loss drive please no more than 80 km/h etc. I bought the complete wheels in June this year it is about the aluminum rims styling 311 and tires are Pirelli P Zero RSC (runflat) Size: 2x 245/35 R21 98Y 2x 275/30 R21 96Y I have to say I am very Ent I’ve broken three tires within 3 months it can’t be that the Runflat tires break so quickly or? I haven’t experienced this in my whole life, does anyone have experience with Pirelli? Is Pirelli your opinion good? see the pictures below