Error notice on each new post

Replies: 0

Hi, Just installed the plugin, in Debug mode, I see an error notice every time I create a new post. Not sure what this is for and how to fix it.

Here is the error notice message:
Notice: Undefined index: myplugin_noncename in /home/Domain-User/public_html/Domain-name/wp-content/plugins/wha-wordsearch/wha-wordsearch.php on line 818

Please let me know how to fix this issue.

Thanks,