I haven't received points for building in the Worker's Day event

Thanks to reports submitted by players, the development team has managed to find and eliminate the possibility of exploiting a flaw in the construction tournament. Some players used it to gain an unreasonable advantage by breaching the rules of the event and to achieve stratospheric numbers in the Worker’s Day tournament grid.

Please note that players can obtain points in the Worker’s Day event by increasing the power of their base from the maximum value that they have achieved during gameplay. If you destroy towers in advance, your base will lose power.
Thus, you won’t be able to obtain points in the Worker’s Day tournament until you have returned the base power to the value it was at before the towers were destroyed.

This event is intended for players who are actively developing and progressing in terms of the level of their base. Players who have already reached the maximum power for their base can test their might in the other events that are currently in the game, as well as ones that will be coming in the future.