Problems installing h5p content/libraries

Hello there,

I am having a problem when installing this plugin after a migration. As you can see in the attached snapshot 3 errors appear when I enter in the H5P libraries´ configuration. As a result, the hub is not connected to my webpage so I can not use H5P contents.

The only way to use some contents is to upload them manually. However, once that I have uploaded some contents it appears this message in the hub:

Content type list outdated

Your site is having difficulties connecting to H5P.org to check for content type updates. You may not be able to update or install new content types.

Anyone knows which could be the problem?

Thanks in advance!