Hi Hive account@camb , I tried upvoting a comment and got this error any ideas what it is?

RPCError: Assert Exception:_db.head_block_time() < comment.cashout_time - STEEM_UPVOTE_LOCKOUT_HF17: Cannot increase payout within last twelve hours before payout.

The reply was made 7 days ago but I wasn't in any way notified so couldn't up vote sooner.

Thanks