Game Play Mission problem (I can't continue the game)

In the required missions, there’s one with grind skills and tricks. After finishing some of the objectives, it switches to “clean poo from the ground with your skills.” or something like that.

I collected them, but the mission didn’t complete or move to the next objective. When I tried restarting, it still told me to collect them, but there’s no poo on the ground anymore, so I’m stuck.

Please help me I want to continue the game.