Permission denied error for thank you pages

Question

No one can view the thank you pages following a contribution. This was working a few days ago ... we had a donation page that granted access to a section of the website and the only way the user could get the URL of the protected pages was in the thank you page and their reciept.

Now, none of the thank you pages are working. They just go back to the form and the error log is below. Note that the payment goes through and the emailed receipt is sent, but the page just refreshes back to the form with a url that looks like https://example.org/donate/?civiwp=CiviCRM&q=civicrm%2Fcontribute%2Ftransact&_qf_Main_display=true&qfKey=CRMContributeControllerContribution1qyg4ncbkp40g00gsso4s0c4woggggw8kwcs0kgk4gsck444co_787

Oct 19 16:21:29  [info] Contribution 1284 updated successfully

Oct 19 16:21:31  [info] Contribution 1284 Receipt sent

Oct 19 16:21:42  [error] 
$Fatal Error Details = array:3 [
  "message" => "You do not have permission to access this page."
  "code" => null
  "exception" => CRM_Core_Exception {#5547
    -errorData: array:1 [
      "error_code" => 0
    ]
    #cause: null
    -_trace: null
    #message: "You do not have permission to access this page."
    #code: 0
    #file: "/home/example/public_html/wp-content/plugins/civicrm/civicrm/CRM/Utils/System/WordPress.php"
    #line: 615
    trace: {
      /home/example/public_html/wp-content/plugins/civicrm/civicrm/CRM/Utils/System/WordPress.php:615 {
        ›   $civicrm_wp_title = ts('You do not have permission to access this page.');
        ›   throw new CRM_Core_Exception(ts('You do not have permission to access this page.'));
        › }
      }
      /home/example/public_html/wp-content/plugins/civicrm/civicrm/CRM/Utils/System.php:62 { …}
      /home/example/public_html/wp-content/plugins/civicrm/civicrm/CRM/Core/Invoke.php:239 { …}
      /home/example/public_html/wp-content/plugins/civicrm/civicrm/CRM/Core/Invoke.php:69 { …}
      /home/example/public_html/wp-content/plugins/civicrm/civicrm/CRM/Core/Invoke.php:36 { …}
      /home/example/public_html/wp-content/plugins/civicrm/civicrm.php:1199 { …}
      /home/example/public_html/wp-content/plugins/civicrm/includes/civicrm.basepage.php:380 { …}
      /home/example/public_html/wp-includes/class-wp-hook.php:307 { …}
      /home/example/public_html/wp-includes/class-wp-hook.php:331 { …}
      /home/example/public_html/wp-includes/plugin.php:524 { …}
      /home/example/public_html/wp-includes/class-wp.php:787 { …}
      /home/example/public_html/wp-includes/functions.php:1330 { …}
      /home/example/public_html/wp-blog-header.php:16 { …}
      /home/example/public_html/index.php:17 { …}
    }
  }
]


Oct 19 16:21:42  [debug] $backTrace = #0 /home/example/public_html/wp-content/plugins/civicrm/civicrm/CRM/Core/Error.php(441): CRM_Core_Error::backtrace("backTrace", TRUE)
#1 /home/example/public_html/wp-content/plugins/civicrm/civicrm/CRM/Core/Invoke.php(39): CRM_Core_Error::handleUnhandledException(Object(CRM_Core_Exception))
#2 /home/example/public_html/wp-content/plugins/civicrm/civicrm.php(1199): CRM_Core_Invoke::invoke((Array:3))
#3 /home/example/public_html/wp-content/plugins/civicrm/includes/civicrm.basepage.php(380): CiviCRM_For_WordPress->invoke()
#4 /home/example/public_html/wp-includes/class-wp-hook.php(307): CiviCRM_For_WordPress_Basepage->basepage_handler(Object(WP))
#5 /home/example/public_html/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters(NULL, (Array:1))
#6 /home/example/public_html/wp-includes/plugin.php(524): WP_Hook->do_action((Array:1))
#7 /home/example/public_html/wp-includes/class-wp.php(787): do_action_ref_array("wp", (Array:1))
#8 /home/example/public_html/wp-includes/functions.php(1330): WP->main("")
#9 /home/example/public_html/wp-blog-header.php(16): wp()
#10 /home/example/public_html/index.php(17): require("/home/example/public_html/wp-blog-header.php")
#11 {main}

This was for an donation by an admin, and I just can't figure out why this is happening.

Wordpress 6.0.3 CiviCRM 5.53.0

Any pointers are appreciated!!