خطا در ارسال عكس در فروشگاه

با سلام وقتي مي خوام عكس ارسال كنم اين خطارو ميده با اينكه دسترسي رو 777 مي كنم


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سلام
پرمشین فولدر product را تغییر داده و به ۷۷۷ ست کنید