Mysql Router not sending Write request to R/W instance

Question

I am doing InnoDB Cluster Group Replication for the first time. I stuck at the last step Mysql Router. Mysql Router is configured with bootstrapping, But the main issue is MySQL router does not send the write request to the Primary R/W instance after failover. After failover primary become secondary instance and while inserting data through form the Error says The MySQL server is running with the --super-read-only option so it cannot execute this statement

I am following this tutorial https://severalnines.com/database-blog/mysql-innodb-cluster-80-complete-deployment-walk-through-part-one.

Thanks in advance