The crowd of 3,600 held a minute's silence, after hearing a message read out by former England manager Graham Taylor.
But on Saturday the Scunthorpe Telegraph exposed it as a sick hoax.
A German Middlesbrough fan had contacted the club to ask for tickets when she found out that her hero Gaizka Mendieta was playing, but could not afford to travel.
Rather than admit to her financial situation she thought up an elaborate excuse for not attending - that she had been killed by terrorists.
She posted on the Iron-Bru.net messageboard during the match to ask the score and whether the minute's silence had been observed.
We invited her to return to the site to apologise for her actions, which she has done.
In a post on the Iron-Bru.net messageboard on Thursday morning Ina Hentschel said: "I think I owe you all an apology.
"I can imagine how gutted you all must have been after you have heard that.
"I know that I have hurt all your feelings and I want to apologise to all of you for what I have done.
"I don't expect you all to forgive me, because I don't deserve to be forgiven.
"I will never forgive myself what I have done, it was the biggest mistake ever.
"I am really ashamed of what I have done, I have learnt the lesson of my life by doing that."
Calvo-Garcia told the Scunthorpe Telegraph he has forgiven her for her actions.