Help:Errors
XML error: Mismatched tag at line 1XML error: Mismatched tag at line 1
When does it happen: This error appears when saving page from an edit session.
How to avoid it: Always do a (Show preview) before actually saving the page.
What causes this error: A mismatched tag, like a missing closing </scene>, or even a missing "<" or ">" sign.
How to fix it:You must open the page directly in edit mode. For that, try accessing your page (don't pay attention to the XML error text)