Question about Solar Panel/charger and the Powerhouse 400

Hey forum universe - I’ve enjoyed my Powerhouse for a couple of years now and this past year bought a[Rockpals 100W folding solar panel, both because it was on sale and had great reviews but also because it comes with an array of adapters. This last part was key as I wanted to be able to charge the Powerhouse. Alas, none of the adapters work and I’m striking out trying to find out details and info for how to interface these two. The Anker website and forums don’t seem to be providing the info I need and/or seem like pretty old threads. Any thoughts?

Thanks in advance!
Dave