Error when edit the webpage

Tracy899 This can happen multiple reason if you are editing page from different places such as designer and web. Try the below steps and check if this resolves

1. Make sure you have not detached a page from page layout using SharePoint designer, if yes reattach them it will fix the same.

2. Make sure the page appears published at the web level and and at the designer level

3.Make sure page is not checked out to any other users then either ask them to check in or you take ownership of the check out and check it in.

I hope this helps!

Thanks

Vik