It's literally just a 50/50

Update:

I believe you flagged some cells that don't have mines.

I believe the corner top left that you flagged is actually empty and the cell above the middle "2" (in the top sequence 3 2 2) has a mine.

The cell under the watch left of the red flag above the 1 is empty.

I play at http://minesweeperonline.com/ before that I used to play on Windows 98