Additionally, it appears from the screenshot you shared above that this font is not part of your plan. If you want to use the font on a desktop or the web, you might need to upgrade your Adobe plan if you currently have a free one.
We're sorry to hear about the trouble. Please let us know if you were able to view the Add to web project button before. Have you tried using another browser? Would you mind sharing your Adobe ID via private message to investigate this issue further? We're here to help, just need some info.