Once you have completed all the necessary and required courses and your internship, you have not yet graduated. To complete your graduation, you will have to apply by following the steps described here.
You may apply for graduation once all exam results have been processed in Osiris. Please do this as soon as possible once, so you won't have any unnecessary delays. There is only one graduation date per month (except for July, which has none). You are not allowed to start with any Master's programme without having graduated from a Bachelor's degree.