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The website encountered an unexpected error. Please try again later.<br /><em class="placeholder">RuntimeException</em>: Failed to start the session because headers have already been sent by &quot;F:\inetpub\hfn-drupal-live-9\web\modules\custom\hfn\src\lib\Clio\Controller\HfnApplication.php&quot; at line 1019. in <em class="placeholder">Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage-&gt;start()</em> (line <em class="placeholder">152</em> of <em class="placeholder">F:\inetpub\hfn-drupal-live-9\vendor\symfony\http-foundation\Session\Storage\NativeSessionStorage.php</em>). <pre class="backtrace">Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage-&gt;start() (Line: 162)
Drupal\Core\Session\SessionManager-&gt;startNow() (Line: 193)
Drupal\Core\Session\SessionManager-&gt;save() (Line: 191)
Symfony\Component\HttpFoundation\Session\Session-&gt;save() (Line: 61)
Drupal\Core\StackMiddleware\Session-&gt;handle() (Line: 48)
Drupal\Core\StackMiddleware\KernelPreHandle-&gt;handle() (Line: 191)
Drupal\page_cache\StackMiddleware\PageCache-&gt;fetch() (Line: 128)
Drupal\page_cache\StackMiddleware\PageCache-&gt;lookup() (Line: 82)
Drupal\page_cache\StackMiddleware\PageCache-&gt;handle() (Line: 48)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware-&gt;handle() (Line: 51)
Drupal\Core\StackMiddleware\NegotiationMiddleware-&gt;handle() (Line: 23)
Stack\StackedHttpKernel-&gt;handle() (Line: 709)
Drupal\Core\DrupalKernel-&gt;handle() (Line: 19)
</pre>