FlexBe spin_server_X error

I am finishing my the third unit in Flexbe with ROS and when it comes to the turnaround state it keeps failing due to the following error “spin_server_X not yet registered!”. Although the spin_action_server is working and the msg have been correctly compiled (and checked). Could someone explain me how to solve it.

Hello @juan.rosas45b57f1ffbe24869 ,

Have you solved this issue yet? If not, please let me know in which unit/exercise you are experiencing it.

No, it still happens when finishes the first state (GoForward) and tries to start the next state (Turn).

Are you starting the action server before running FlexBe? If yes, could you record a short video showing the error?