Unfortunately Delicious has been discontinued since June 15, 2017. https://blog.pinboard.in/2017/06/pinboard_acquires_delicious/
I suggest moving from Delicious to Google Bookmarks.
To export from delicious use: https://del.icio.us/export
To import into Google Bookmarks from delicious use (Upload HTML): https://www.google.com/bookmarks/deliciousimport
A simple extension to save links into Delicious.
The original code for this extension is from del.icio.us/tools.