For the first goal Lawrence didn't track his man the moment the Croatian made the pass from just inside their own half.
He should have anticipated a ball over the top into acres of space and didn't.
That's why he was chasing back so vigorously and facing the goal at pace, led to an uncontrolled own goal.
If he'd chased back with the Croatian just beyond him, he would have been in a much better position to defend with his back and side to the goal.

The second goal was appalling defending along with a lot of bad bounces