Hello Megan,
When I test the plugin with firefox or chrome there is no canvas or circle, only an svg element for the graph. It is possible that the canvas is generated by another plugin.
1. Does the problem resolve itself when you hide the canvas using CSS?
2. Does the problem remain when you switch to another theme?
3. Can I ask what browser you are using? Does the problem remain when you use firefox or chrome?
To really determine what’s going on, I would have to login and inspect your website to determine what’s wrong.
Please let me know
kind regards