This is due to one of your entities (probably the one written in the compile log) having a helper node, or the blue sphere/white circle, at the end of the red line.
Select the whole map, and zoom in on the line, you'll see a white circle at one end.
First try clicking Tools -> Centre Origins. If this doesn't work, then it's not a origin helper node, but something else. You'll have to find which entity it is (start with entity prop_static (-6204.64 3772.00 -102.36) ), and manually move the helper node back into the map.