Error in C3_W3 in andrew ng course for unsupervised and reinforcement learning

the lab doesnt work i get a operatornotallowedingrapherror
in the last giant code block where it runs the agent
ive submitted the lab and my my code is correct and i got 100% but the lab doesnt run

Hello @DeathXUnnat It seems like you are changing code for graphs which doesn’t mean to be change you can check the cell of graph once again for the error. It would be great if you can tell in which cell you are getting this error.
Thanks
Riya