Hi Team,

I am calling apex class from constrctor but while debugging i am getting below error and cursor is not going inside setCallback method. It seems it is not calling apex class. Below is code:

Error is:
his page has an error. You might just need to refresh it. Action failed: c:BeerExplorer$controller$handleCompEvents [Invalid key search] Failing descriptor: {c:BeerExplorer$controller$handleCompEvents}

Controller code:

({
    handleCompEvents : function(component, event, helper) {
        var searchParam=event.getParam('searchText');
        var action=component.get('search');
        action.setParams({
            txtSearch:searchParam
        });
        
        action.setCallback(this,function(response){
            var state=response.getState();
            if(state=='SUCCESS')
            {
                var responseValue=response.getReturnValue();
                console.log('responseValue',responseValue);
            }
        })
    }
})

Apex Class: 
public class BeerExplorer {

    @AuraEnabled
    public static List<Beer__c> search(string txtSearch)
    {
        string likeParam='%' + txtSearch + '%';
        string query= 'select Id, Name, From Beer__c where Name Like: likeParam ';
        List<Beer__c> beerList=Database.query(query);
        return beerList;
    }
    
}