Help - Importing Sketchup .obj file into Adobe Dimension

Hi everyone - I've been working on a 3D model in Sketchup (I am a student and this is my first time playing around with 3d modelling.) I exported the Sketchup file as a .obj file, and then tried to import into Adobe Dimension to add colours and materials. When I try import the file, I receive the popup pictured below. Does anyone please have any advice? I'm not sure what I have done wrong, or if theres anything I can do to fix this. I have attached images below of the error prompt, the settings I used (I also played around with unticking and ticking options although nothing worked), and an image of the model itself. Any help is greatly appreciated, thanks!