This sounds as if JDownloader tried to download from RG without your account.
Please keep in mind that:
1. Multihosters are unstable in general.
2. JDownloader will always try to find a working download candidate --> If premium download attempts fail (too often), it will revert to free mode.
You can stop it from doing that by adding account usage rules for the hosts you are using (e.g. "rapidgator.net") and disable free (without account) download mode in there:
https://support.jdownloader.org/inde...ticle/View/29/
JDownloader will then be forced to keep trying with your accounts.
This should solve your "issue".
-psp-