!!! WordPress Delete Buttom Stop Working !!! Need Expert Help

Delete Post Buttom In My WordPress Stop Working Its showing “WordPress Error You Cannot Delete This Post “
Kindly anyone Give me Solution 4 That.
i will be very thanful to 4 this solution , i m suffering from this problem from past few Months.

I DONT ABLE TO DELETEN A SINGLE POST . Kindly Give Yrs Solutuion