I just copied three sidebar blocks to my scrapbook and now I can not add ANY new content blocks.

When I try and add ANY NEW content blocks on either the main page or sidebar the Add Block window briefly opens then the site tries to load a page from maps.gstatic.com which I suspect is the Google map block that copied to the scrapbook.

Is there any way to manually clear the Scrapbook?

Any assistance ASAP would be greatly appreciated.

Regards
M@