Let me welcome you to Flyertalk Ryan777, and to the British Airways forum. You've certainly come to the right place to get more information about making the best use of your Avios and HHA. It's good to see you here.
That specific problem isn't one that rings a bell with me so I think it's time to call up BAEC and speak to someone. Alternatively if you are on Twitter, send them a Direct Message. That error type, though, is quite familar, there are certainly times where if you get that sort of message you best leave it an hour or overnight. But if it repeats after overnight that is usually the signal to give up repeating the action.