Hello,
If I do understand correctly, you are telling us that when you are trying to create a remote HTTP(S) link using RMS connect feature you are getting this error. This message indicates that you used up all your RMS data. Please navigate Services > Management and check the value of the remaining data. If you do have 0 GB/MB left then this message is correct. You can add more data to your account by using your credits. 1 credit = 2GB of data.
Regards.