Sewers Of Ragni Quest Help

The question is stuck on Stage 4
After I placed the TNT and pressed the button next to it, nothing happened.

 

Sometimes the button doesn't work. Try pressing it again a few more times, then try going back to Jenprest, going back up to the button, and pressing it, then try /class relogging or changing worlds to see if that fixes it.

 

I see u everywhere my dude, a staple for the community :)

 

Thanks, it is working now, but now I have another problem, on the pillar parkour, I reach the other side but the barrier doesn't let me jump to the next session