We can rectify the issue with your two paychecks with unspecified classes by reviewing and modifying them, Okie129. Let's work through this together.
 

There are two possible solutions based on the payroll method you're using in your QuickBooks Online (QBO) Payroll. I will outline both scenarios below so you can choose the one that best fits your needs:
 

• If you're using paper checks
  
  1. Go to your Paycheck list.
  2. Customize the date range to August 1 - August 15.
  3. Click the Edit on a paycheck.
  4. Add the class to your paycheck.
   
• If you're using direct deposit checks
  Know that if you need to change the designated classes on a processed direct deposit check, you can edit it directly without needing to add a journal entry. Here's how:
  
  1. Go to Payroll, then Employees.
  2. Choose the Paycheck list.
  3. Look for the direct deposit paycheck you want to edit, then select the paycheck.
  4. Select Edit from the Make Adjustment ▼ dropdown.
  5. Click Edit classes & projects.
  6. Update the classes, then select Save once done.

To verify your modifications, reopen the check and select Transaction Journal.
 

Moreover, you can refer to the section on fixing missing classes in paychecks for additional guidance on the drafted steps in this article: Track payroll expenses by classes and projects in QuickBooks Online Payroll.
 

However, if following the suggested measures does not fix the problem, contacting our QBO Payroll team is recommended. They can address the issue promptly using their secure tools. Details on how and when to contact them are available in this material: Get help with QuickBooks products and services.
 

In addition, if you want to produce a hard copy, email it, or export it to Excel, PDF, or Google Sheets in the future, you can click on these icons above your P&L by Class report or any report:

That should point you in the right direction in rectifying your payroll checks with unspecified classes. Tag my name if you have any other QBO-related inquiries. I'll be here to address them as soon as possible.