Undefined Variable: WTI_VOTED_MESSAGE

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The problem is not resolved actually and still exists in the place pointed by topic starter. It presents here:

if($wti_has_voted > 0) {
		$wti_voted_message = get_option('wti_like_post_voted_message');
     }

     return $wti_voted_message;

And it clearly stays here that GetWtiVotedMessage returns undefined variable.

Ok. The same thing is discussed on another thread as well. Please check here.