Fun, but some errors

Many of these levels are great and fun to do, but there are some problems with a few puzzles. These puzzles are meant to be solvable without hints or guessing. A few of the puzzles have their numbers wrong, which makes it impossible to finish the puzzle without guesses/hints. I have double-checked this several times. I remember some of these levels are Level 21 in World and Level 35 + 36 in Big Levels. Please fix this and you will have a nice game! There is also a flaw in clicking "next puzzle" because the following puzzles will be blocked by the ad at the bottom. This makes me go back to the puzzle menu in order to play the next puzzle. Please fix this design as well.

an about Nonogram - IQ Logic Pic Puzzle