I'm new to triggers and apex, but was attempting a simple trigger to create a child object on Contact object. Goal is to establish a contact to account relationship when creating a contact using the contacts Name and Account to populate the relationship object. Here is the trigger I wrote, which worked in Sandbox.

trigger CreateContactAccountAssociation on Contact (after insert)
{    List<Contact_Account_Association__c> Associations = new List<Contact_Account_Association__c>();
 
    //For each Contact processed by the trigger, add a new
    //Association record for the specified user.
    //Note that Trigger.New is a list of all new Contacts
    //That are being created.
 
    for (Contact newContact: Trigger.New) {
        if (newContact.RecordTypeId !='012700000009iHg' ) {
            Associations.add(new Contact_Account_Association__c(
                Account__c = newContact.AccountId,
                Contact__c = newContact.Id));
        }
    }

    insert Associations;
}

Trigger worked in Sandbox......Created below apex class  which passed in Sandbox

@IsTest(SeeAllData=True)
public class TestTrigger {

    static testmethod void insertContact() {
  
        Contact u = new Contact();
      
            u.Salutation = 'Mr.';
            u.FirstName = 'Test';
            u.LastName = 'Trigger';
            u.AccountId = '00170000011BckQ';
      
        insert u;
    }
}

Received below errors when deploying to production



Any assistance is appreciated!!