As you may have noticed, some of the levels do not have any pre-game Boosters because the first move is limited.
The Booster Bot do not yet notice this and throws out the Booster on the level which makes it impossible to make a move.
Many player get stuck on level 5676, but this can happen on other levels as well that start without any pre-game Boosters:
To fix this and reset the Bot that is the cause of the issue, enter a previous level and fail it. The Bot will then be reset and you can now go back to your level an play it correctly.
