If you see even after updating, it means the developers are likely already working on a fix.
JDownloader needs an update to handle a change on the host's website. IP/Account Block jdownloader host problem
Free users will always battle host limits. Services like or AllDebrid act as a middleman: you give them one premium subscription, and they unlock hundreds of hosts for JDownloader. This virtually eliminates "Host Problem" errors. If you see even after updating, it means