Deleting Components on sketchup Shop

Hello, I tried to purge components dowloaded from the 3D warehouse and the system keeps crashing. I have continued to work on the file but it has grown to 254MB. I tried changing from IOS to Crome but to no avail. Im using the web based sketchup shop on a mac. Thanks for the input

Maybe you could share the .skp file with us by uploading it to Drop Box and sharing the link.