I cannot complete the Subscribe to Platform Events challenge. When I click the 'Check Challenge' button I get the following error:

Publishing an Order_Event__e did not create the associated task successfully. Please check your trigger and event.

Here is my code:

trigger OrderEventTrigger on Order_Event__e (after insert) {
    // List to hold all tasks to be created.
    List<Task> tasks = new List<Task>();
    
    // Get queue Id for case owner
    String usr = UserInfo.getUserId(); 
        
       
    // Iterate through each notification.
    for (Order_Event__e event : Trigger.New) {
        if (event.Has_Shipped__c == true) {
            // Create Task to dispatch new team.
            Task t = new Task();
            t.Priority = 'Medium';
            t.Status = 'New';
            t.Subject = 'Follow up on shipped order' + event.Order_Number__c;
            t.OwnerId = Usr;
            tasks.add(t);
        }
   }
    
    // Insert all tasks corresponding to events received.
    insert tasks;
}

Please assist. Thanks. 

Greetings,

In point 2, i cant check it as sucess because it show the following error:

Challenge Not yet complete... here's what's wrong: 
The runWarehouseEquipmentSync method does not appear to have run successfully. Could not find a successfully completed @future job for this method. Make sure that you run this method at least one before attempting this challenge. Since this method is annotated with the @future method, you may want to wait for a few seconds to ensure that it has processed successfully.

This is my code:

Warehouse Callout Service

public with sharing class WarehouseCalloutService {
 
    private static final String WAREHOUSE_URL = 'https://th-superbadge-apex.herokuapp.com/equipment';
    
    // complete this method to make the callout (using @future) to the
    // REST endpoint and update equipment on hand.
    @future(callout=true)
    public static void runWarehouseEquipmentSync(){
        Http http = new Http();
		HttpRequest request = new HttpRequest();
		request.setEndpoint(WAREHOUSE_URL);
		request.setMethod('GET');
		HttpResponse response = http.send(request);
		// If the request is successful, parse the JSON response.
		if (response.getStatusCode() == 200) {
    		// Deserialize the JSON string into collections of primitive data types.
    		List<Object> equipments = (List<Object>) JSON.deserializeUntyped(response.getBody());
            List<Product2> products = new List<Product2>();
            for(Object o :  equipments){
                Map<String, Object> mapProduct = (Map<String, Object>)o;
                Product2 product = new Product2();
                product.Name = (String)mapProduct.get('name');
                product.Cost__c = (Integer)mapProduct.get('cost');
                product.Current_Inventory__c = (Integer)mapProduct.get('quantity');
                product.Maintenance_Cycle__c = (Integer)mapProduct.get('maintenanceperiod');
                product.Replacement_Part__c = (Boolean)mapProduct.get('replacement');
                product.Lifespan_Months__c = (Integer)mapProduct.get('lifespan');
                product.Warehouse_SKU__c = (String)mapProduct.get('sku');
                product.ProductCode = (String)mapProduct.get('_id');
                products.add(product);
            }
            if(products.size() > 0){
                System.debug(products);
                upsert products;
            }
		}
    }
 
}

Warehouse Callout Service Mock

@isTest
global class WarehouseCalloutServiceMock implements HttpCalloutMock {
    // implement http mock callout
    global HttpResponse respond(HttpRequest request){
        
        System.assertEquals('https://th-superbadge-apex.herokuapp.com/equipment', request.getEndpoint());
        System.assertEquals('GET', request.getMethod());
        
    	// Create a fake response
		HttpResponse response = new HttpResponse();
        response.setHeader('Content-Type', 'application/json');
		response.setBody('[{"_id":"55d66226726b611100aaf741","replacement":false,"quantity":5,"name":"Generator 1000 kW","maintenanceperiod":365,"lifespan":120,"cost":5000,"sku":"100003"}]');
        response.setStatusCode(200);
        return response;
    }
}

Warehouse Callout Service Test

@isTest
private class WarehouseCalloutServiceTest {
  // implement your mock callout test here
	@isTest
    static void WarehouseEquipmentSync(){
        Test.startTest();
        // Set mock callout class 
        Test.setMock(HttpCalloutMock.class, new WarehouseCalloutServiceMock()); 
        // This causes a fake response to be sent from the class that implements HttpCalloutMock. 
        WarehouseCalloutService.runWarehouseEquipmentSync();
        Test.stopTest();        
        System.assertEquals(1, [SELECT count() FROM Product2]);        
    }
}

In another hand, I created an Remote Site Detail to bring access to JSON external list "Equipment". The debugs are made by "Execute Anonymous Window" option and Run "Warehouse Callout Service Test" class. Finally, I change to visible all Product's fields for all profiles.

Can anyone help me?

Thanks & Regards!