This error indicates to me that the GEDCOM code probably has some HTML imbedded in it. This forum will not allow you to include HTML as text. HTML code maybe how ACOM coding the location of pictures in its GEDCOM files.
Do you know how to use the "Snipping Tool" in Windows? It can be found under "Accessories" on the Windows Menu.
If you do you can make a picture snapshot of the code and attach it here. This way others can learn from what is being done, rather than asking again later.