Login to Learnyst as admin. From admin dashboard go to
Website builder ---> More ---> Settings ----> Title & Description ---> Logo.
Click on Upload New Image.
Choose the from the computer or just drag and drop the image file to upload as logo.
The Image file uploaded can also be cropped to the selected size by pressing on "Save Cropped Image" button or as uploaded by clicking on "Skip cropping" button
After clicking on Select, your image shows up as logo in the settings page. Click on Update and click on Done to complete the settings.
Click on Go Back and press "Preview", to preview your website for the changes and press "Publish" button to publish your website so that the user can view the changes made to your website.