
I clicked on Custom Object and I do not get or see the webpage: New Custom Object.
this is the page I see:

Sorry you're stuck but there's almost always a pretty easy fix! Do NOT try to start all over again, uninstall Max's Pitch Package, etc. That can make it worse. There's a 95% chance the same snag/fix is listed & answered in the Help FAQ. But if you can't find it there, post your problem here.
Make sure you post in the right category below & be sure to include a screencap showing the issue!
This is due to a security/privacy setting in your browser. If you're using Safari, go into your settings and turn off "Block Cross-site Tracking". If you're using Chrome, go into your settings and turn off "Block 3rd Party Cookies".
Let me know, ok?