Website server disk full help from Cloudways

I need help clearing and making space for what I believe is my website. My website is [login to view URL] See attach image with the emails I was sent and also below is the text: Hi there, I, the CloudwaysBot, am here to inform you about an important event regarding your Cloudways server. The available disk space on your server Echo is low. 95% or more of your disk has been occupied. This means (among other things) that no additional files and folders can be created and this will seriously hamper your application(s) functionality. Application(s) can occupy unnecessary space due to logs, cache files, and sessions. In that case it is recommended to clear disk space from your application. You can check application disk space consumption via SSH or usage of disk via the Monitoring section in the Server Management area of the Cloudways Platform. To resolve the situation, you can delete unnecessary files and folders to free up disk space or you can increase the server’s disk size. Feel free to get in touch with the support team via Live Chat for questions/comments. Thank you, CloudwaysBot [login to view URL]