Decision Point is inactive in Item

Dear Experts,

I have an issue while I approve a Decision Point is a particular Phase, the "Decision Point (DP)" is having Inactive Status, Now the "Decision Point(DP)" can not be approved to proceed further with next Phase.

Kindly give me some input where the link has been broken between DP and Phase.

There is no tick mark on the current active DP.

Regards,

Anil Pattanaik