It’s not just the NG that matters – and thank goodness for that.
If there are nine stats categories, it’s because they all serve a purpose.

Although you’ve been without an active manager for 17 days – not ‘months’ – the players and the team selection are good enough to get results in Division 4.
You were simply unlucky in this match, and that shouldn’t stop you from continuing to improve as you’re doing.
The match was very evenly balanced in terms of statistics and possession throughout the first half, and your opponents created more chances than you did; from one of those, they opened the scoring.
In the second half, the tide turned decisively in your favour, but you didn’t have ‘the luck’ to convert your dominance into a goal.
Overall, you did what was needed to avoid losing this match, but the odds are such that the result is consistent with the run of play. The fact that the odds were in your favour doesn’t guarantee a positive result. There was a greater chance of you winning than the opposite, but the chances of losing weren’t zero – far from it.
There are some excellent managers at Les Tontons who’ll be able to help you better understand your results.
In any case, it’s not a bug.