The website encountered an unexpected error. Please try again later.</br></br><em class="placeholder">Drupal\Core\Config\ConfigValueException</em>: register_preapproved.settings key contains a dot which is not supported. in <em class="placeholder">Drupal\Core\Config\ConfigBase-&gt;validateKeys()</em> (line <em class="placeholder">211</em> of <em class="placeholder">core/lib/Drupal/Core/Config/ConfigBase.php</em>). <pre class="backtrace">Drupal\Core\Config\ConfigBase-&gt;setData(Array) (Line: 107)
Drupal\Core\Config\Config-&gt;setData(Array) (Line: 309)
Drupal\Core\Config\ConfigInstaller-&gt;createConfiguration(&#039;&#039;, Array) (Line: 132)
Drupal\Core\Config\ConfigInstaller-&gt;installDefaultConfig(&#039;module&#039;, &#039;register_preapproved&#039;) (Line: 75)
Drupal\Core\ProxyClass\Config\ConfigInstaller-&gt;installDefaultConfig(&#039;module&#039;, &#039;register_preapproved&#039;) (Line: 276)
Drupal\Core\Extension\ModuleInstaller-&gt;install(Array, 1) (Line: 83)
Drupal\Core\ProxyClass\Extension\ModuleInstaller-&gt;install(Array) (Line: 464)
Drupal\system\Form\ModulesListForm-&gt;submitForm(Array, Object)
call_user_func_array(Array, Array) (Line: 111)
Drupal\Core\Form\FormSubmitter-&gt;executeSubmitHandlers(Array, Object) (Line: 51)
Drupal\Core\Form\FormSubmitter-&gt;doSubmitForm(Array, Object) (Line: 590)
Drupal\Core\Form\FormBuilder-&gt;processForm(&#039;system_modules&#039;, Array, Object) (Line: 319)
Drupal\Core\Form\FormBuilder-&gt;buildForm(Object, Object) (Line: 93)
Drupal\Core\Controller\FormController-&gt;getContentResult(Object, Object)
call_user_func_array(Array, Array) (Line: 123)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber-&gt;Drupal\Core\EventSubscriber\{closure}() (Line: 582)
Drupal\Core\Render\Renderer-&gt;executeInRenderContext(Object, Object) (Line: 124)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber-&gt;wrapControllerExecutionInRenderContext(Array, Array) (Line: 97)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber-&gt;Drupal\Core\EventSubscriber\{closure}() (Line: 151)
Symfony\Component\HttpKernel\HttpKernel-&gt;handleRaw(Object, 1) (Line: 68)
Symfony\Component\HttpKernel\HttpKernel-&gt;handle(Object, 1, 1) (Line: 57)
Drupal\Core\StackMiddleware\Session-&gt;handle(Object, 1, 1) (Line: 47)
Drupal\Core\StackMiddleware\KernelPreHandle-&gt;handle(Object, 1, 1) (Line: 106)
Drupal\page_cache\StackMiddleware\PageCache-&gt;pass(Object, 1, 1) (Line: 85)
Drupal\page_cache\StackMiddleware\PageCache-&gt;handle(Object, 1, 1) (Line: 50)
Drupal\ban\BanMiddleware-&gt;handle(Object, 1, 1) (Line: 47)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware-&gt;handle(Object, 1, 1) (Line: 52)
Drupal\Core\StackMiddleware\NegotiationMiddleware-&gt;handle(Object, 1, 1) (Line: 23)
Stack\StackedHttpKernel-&gt;handle(Object, 1, 1) (Line: 693)
Drupal\Core\DrupalKernel-&gt;handle(Object) (Line: 19)
</pre>