How do you place the SolarBot Impact Dashboard on the SolarBot App Page? 

Hi!

I started on the Lightning Experience Reports & Dashboards Specialist superbadge and made it all the way to Step 7 (Create the SolarBot dashboard) to get this error message. I started a completely new org for this superbadge module and was wondering if anyone could provide assistance? It's taken me a while to get to this point, so I'd hate to have to start over now. Any help is much appreciated!!

Challenge Not yet complete... here's what's wrong: 
There was an unexpected error while verifying this challenge. Usually this is due to some pre-existing configuration or code in the challenge Org. We recommend using a new Developer Edition (DE) to check this challenge. If you're using a new DE and seeing this error, please post to the developer forums and reference error id: ZKSWPWKT

Here is the Question


Create an Apex class that implements the Schedulable interface to update Lead records with a specific LeadSource. Write unit tests that achieve 100% code coverage for the class. This is very similar to what you did for Batch Apex.
Create an Apex class called 'DailyLeadProcessor' that uses the Schedulable interface.
The execute method must find the first 200 Leads with a blank LeadSource field and update them with the LeadSource value of 'Dreamforce'.
Create an Apex test class called 'DailyLeadProcessorTest'.
In the test class, insert 200 Lead records, schedule the DailyLeadProcessor class to run and test that all Lead records were updated correctly.
The unit tests must cover all lines of code included in the DailyLeadProcessor class, resulting in 100% code coverage.
Run your test class at least once (via 'Run All' tests the Developer Console) before attempting to verify this challenge.


Here is my code so far

global class DailyLeadProcessor implements Schedulable {

    global void execute(SchedulableContext ctx) {
        list<leads>Lead = [select leadSource from lead where isnull= true]
        
         for (Integer i = 0; i < 200; i++) {
            Leads.add(new lead(
                name='Dream force'+i
            ));
        }
        insert Leads;
    }

I am not sure what is wrong here