Listen up, ladies ... Erin Andrews is about to tell you how she almost messed up one of the sweetest storybook proposals of all time ... and the culprit was HER FEAR.
We got the future Mrs. Jarret Stoll out at LAX ... and she talked to our photog about the super precious Disneyland proposal she got from the NHL star.
What you didn't know is that it almost got TOTALLY SCREWED UP ... and there was one ride at the Happiest Place On Earth that would've been to blame.