Ok, I just checked, what is there is still 100sp delegation. If you want to increase it to 150, select the 150sp delegation box.

Another option is to go to your steemworld.org. click on delegation, select outgoing. You will see the communities you delegated to.

Then go steemkidss side, scroll to the right, you will see edit, click on it. a dialogue box will come out, increase the delegation to 150sp, authorize the transaction with your active key.

You are good to go.