Can not back up to Time Capsule after a restore

I just had my HDD replaced as the previous one failed. I performed a restore from my time capsule during the setup of the new drive without incident.

Now, I am unable to back up to my time capsule. However, the time capsule is working properly for my husband, who also has a mac. He is able to continue to back up his computer.

Any help on how to start backing up again would be appreciated.

Thanks.