Create a query and assign the query results to the list
Get this information:
The name of the property
The broker’s email address
How long the property has been on market
(Hint: Use API names, not field names or field labels)
Object: Property
Condition: The property was listed within the last 30 days

Hi,

I have followed several different solutions to this step, but still, I am recieving this error: 

"Challenge Not yet complete... here's what's wrong: 
There was an unexpected error in your org which is preventing this assessment check from completing: System.DmlException: Insert failed. First exception on row 0; first error: FIELD_CUSTOM_VALIDATION_EXCEPTION, error: [Name]"

Has anyone got any ideas on how to solve this? 

Please let me know what you need of information from this. I have the following validation rules on opportunity object :
"Approved field validation": 
AND( 
ISCHANGED(Approved__c), 
OR( 
$Profile.Name <> 'System Administrator', 
$Profile.Name <> 'Custom: Sales Profile' 
) 
)

High Value Opportunity Validation:

AND( 
IsClosed = TRUE, 
Amount > 100000, 
Approved__c <> TRUE 
)