I am trying to use App Exchange 'Docmation' for setting a bar chart for my communities. I get thie error when I try to entr the Apex class on the lightning setup page.
My apex class for the extract of data


global class EnrolmentsPerYearAuraController {
    @AuraEnabled
    global static List<EnrolmentQueryResults> getEnrolmentsPerYear(){
        
        //Get looged in user details
        User loggedInUser = [SELECT Id,
                             ContactId,
                             Contact.AccountId,
                             Contact.Company_Contact__c
                             FROM User
                             WHERE ID=: UserInfo.getUserId() LIMIT 1];
        System.debug('=loggedInUser===='+loggedInUser);
        
        List<AggregateResult> agrResults = [SELECT CALENDAR_YEAR(Start_date__c) startYear,
                                            Count(Id) total
                                            FROM Training_Agreement__c
                                            WHERE CALENDAR_YEAR(Start_date__c) >2011 AND
                                            (Status__c != NULL OR Non_TEC_Funded_Status__c != NULL) AND
                                            //(Company__c = 'CityFitness HO'OR parent_Company_for_community__c ='CityFitness HO')
                                            (Company_Id__c = :loggedInUser.contact.AccountId OR 
                                             Parent_Company_ID_for_Community__c = :loggedInUser.contact.AccountId)
                                            GROUP BY CALENDAR_YEAR(Start_date__c)
                                            ORDER By CALENDAR_YEAR(Start_date__c)];
        
        List<EnrolmentQueryResults> aqResults = new List<EnrolmentQueryResults>(); 
        for (AggregateResult ar: agrResults){
            aqResults.add(new EnrolmentQueryResults(ar));  
        }
        if (loggedInUser.Contact.Company_Contact__c == TRUE)   {
        return aqResults;
        }  else return NULL;
                
    }
}

global class EnrolmentQueryResults {
    @AuraEnabled
    public Integer Year {get; set;}
    @AuraEnabled
    public Integer Total {get; set;}

    //constructor
    global EnrolmentQueryResults(AggregateResult ar){
        Year = (Integer)ar.get('StartYear');
        Total = (Integer)ar.get('total');
    }
}

Thanks in advance for any help

Jay