How do I get my recent classes to show up on my canvas dashboard?

My canvas portal is not showing the classes that I am enrolled in, it still shows the classes I took during the summer. One of the classes shown is from the first summer session and it is still up. My recent classes are not up except for one class. It is also showing classes that I dropped instead of the classes that I am enrolled in for the Fall 2019 semester. I have emailed one professor who said that I am listed in his class even though I dropped the class.