Eriksen put United in the lead in the first half, but Sam Lammers equalized in the second half.
The Dane later said: "I think mostly disappointed as a team, we wanted more in the end, far from good enough. They looked like they wanted it more - that can't be right.
"I think everyone is looking at themselves, everyone is a professional footballer, they know what to do, what can't happen.
"We don't lose but it feels like a loss."