After upgrade to CKEditor (to 4.5.3), toolbar is messed up

For a screenshot of the way the toolbar NOW looks post-upgrade, go to this link: https://geoengineeringwatch.org/images/toolbar.jpg

After upgrading CKEditor to the newest version, the toolbar is completely messed up. The pictures on the toolbar are not the correct ones now.

Thanks for any help you can provide.

https://www.ads-software.com/plugins/ckeditor-for-wordpress/