Betfair Internal Error occurred
When you see this error it is likely to be a Betfair API issue. Reboot Bet Angel and try connecting in connection mode one. If the error does not repeat then this is pretty much confirmed as an API issue. In this case you will need to refer to Betfair to find out when the issue will be resolved. We will usually spot these types of issues and give guidance via Bet Angel.
Bet Angel - Technical Support