Freelander 2 (LR2) Starts revs a little the dies.

Hi I have a freelander TD4 2010. been standing fir some time. Started up today no problem took it for a run bit sluggish but it has been standing. Arrived back home started running lumpy would not rev very well.
Now it turns over but will not start. Checked diesel pressure with scanner. Approx 44150kpa. Starts very lumpy won’t Rev dies in 5-10secs