If a node in Umbraco ever becomes corrupted there are a few ways to fix this issue.
Try the following steps in this order:
Try to republish the node.
Delete the node and manually clear the recycle bin.
If the problem persists, open up
~/App_Data/umbraco.sdf(use the SQl Compact Database Toolkit for Visual Studio) and manually delete all artefacts pertaining the corrupted node.
Republish the entire site by visiting this link, right click on
CONTENTand then choose
Republish entire site, which will rebuild
This should solve your problems, or at least it worked for me!