Quick answer

Nobody can see my match

Most likely, the match is Private. A friendly match is Private when you create it. Fans can't see a Private match.

Fans who open it see Match unavailable — "This match is not published yet."

What to do

In the bottom bar, tap My Cricket.
Tap Fixtures I created. A Private match has a grey Private tag.
Tap the match. The Edit Match form opens.
Tap the Private switch. It now says Public — "Visible in public scoreboard".
Tap Save.

Only the person who created the match can do this. So can the tournament's owner and co-organisers.

Reason	What to do
You scored without internet. The card in My matches shows Not sent.	Turn on internet. Tap Send now. See How to score without internet.
Fans see "This match was deleted."	The match was deleted. Create it again.
Fans see the match, but not the new score	See Score not showing for fans.