When you see the same teacher (with the same id listed twice), it means that you have two users who are connected to this teacher. Navigate to Security>Teachers and search users by the teacher id. Once you identify the user record that should be disconnected from the teacher, go to Details -> Profile and click Delete button next to the teacher’s name. Then click Save. 
PCR Educator K-12 School Information System is an online database engineered for independent and private schools to deliver the highest level of flexibility, unique experience, transparent communication and customized design. Being a complete cloud-based solution, PCR Educator system guarantees convenient access anytime, anywhere.