Email "Personal Canvas Install Failed" after the first time you log in to dataloader.io

The first time you log in to dataloader.io (and in case you need to allow access again for any reason) you might receive an email  with the subject "Personal Canvas Install Failed" and the body below:

You have authorized Salesforce.com connected application 'dataloader_io2' to act on your behalf within your organization.

Salesforce.com automatically configures personal-enabled Canvas applications for you. We attempted to configure the canvas application for:

Username/Id: [e-mail] / 0050a02001Kpiqr Organization Name/Id: Your Organization Name / 00Dj0000002rjsP

The configuration was unsuccessful because the Canvas connected application was not a personal-enabled Canvas app.

Please contact the author of the Canvas application to correct these errors.

This notification can be ignored since it won't have any impact other than the canvas app not to be available.

Notice that dataloader.io canvas app is available only if you have a dataloader.io Enterprise or Professional subscription and needs to be installed manually following the steps described in the following article: How to install canvas app to open dataloader.io in a Salesforce tab.