<br />
<b>Fatal error</b>:  Uncaught RuntimeException: Output already started: &lt;br /&gt;
&lt;b&gt;Deprecated&lt;/b&gt;:  Symfony\Component\Translation\t(): Implicitly marking parameter $domain as nullable is deprecated, the explicit nullable type must be used instead in &lt;b&gt;/opt/homebrew/var/www/Documents/webtrees/vendor/symfony/translation/Resources/functions.php&lt;/b&gt; on line &lt;b&gt;18&lt;/b&gt;&lt;br /&gt;
&lt;br /&gt;
&lt;b&gt;Deprecated&lt;/b&gt;:  optional(): Implicitly marking parameter $callback as nullable is deprecated, the explicit nullable type must be used instead in &lt;b&gt;/opt/homebrew/var/www/Documents/webtrees/vendor/illuminate/support/helpers.php&lt;/b&gt; on line &lt;b&gt;184&lt;/b&gt;&lt;br /&gt;
&lt;br /&gt;
&lt;b&gt;Deprecated&lt;/b&gt;:  with(): Implicitly marking parameter $callback as nullable is deprecated, the explicit nullable type must be used instead in &lt;b&gt;/opt/homebrew/var/www/Documents/webtrees/vendor/illuminate/support/helpers.php&lt;/b&gt; on line &lt;b&gt;375&lt;/b&gt;&lt;br /&gt;
&lt;br /&gt;
&lt;b&gt;Deprecated&lt;/b&gt;:  Sabre\Xml\Deserializer\keyValue(): Implicitly marking parameter $namespace as nullable is deprecated, the explicit nullable type must be used instead in &lt;b&gt;/opt/homebrew/var/www/Documents/webtrees/vendor/sabre/xml/lib/Deserializer/functions.php&lt;/b&gt; on line &lt;b&gt;60&lt;/b&gt;&lt;br /&gt;
&lt;br /&gt;
&lt;b&gt;Deprecated&lt;/b&gt;:  Sabre\Xml\Deserializer\enum(): Implicitly marking parameter $namespace as nullable is deprecated, the explicit nullable type must be used instead in &lt;b&gt;/opt/homebrew/var/www/Documents/webtrees/vendor/sabre/xml/lib/Deserializer/functions.php&lt;/b&gt; on line &lt;b&gt;151&lt;/b&gt;&lt;br /&gt;
&lt;br /&gt;
&lt;b&gt;Deprecated&lt;/b&gt;:  app(): Implicitly marking parameter $abstract as nullable is deprecated, the explicit nullable type must be used instead in &lt;b&gt;/opt/homebrew/var/www/Documents/webtrees/app/Helpers/functions.php&lt;/b&gt; on line &lt;b&gt;37&lt;/b&gt;&lt;br /&gt;
 in /opt/homebrew/var/www/Documents/webtrees/app/Http/Middleware/EmitResponse.php:112
Stack trace:
#0 /opt/homebrew/var/www/Documents/webtrees/app/Http/Middleware/EmitResponse.php(67): Fisharebest\Webtrees\Http\Middleware\EmitResponse-&gt;assertBodyNotEmitted()
#1 /opt/homebrew/var/www/Documents/webtrees/vendor/oscarotero/middleland/src/Dispatcher.php(136): Fisharebest\Webtrees\Http\Middleware\EmitResponse-&gt;process(Object(Nyholm\Psr7\ServerRequest), Object(Middleland\Dispatcher))
#2 /opt/homebrew/var/www/Documents/webtrees/vendor/oscarotero/middleland/src/Dispatcher.php(118): Middleland\Dispatcher-&gt;handle(Object(Nyholm\Psr7\ServerRequest))
#3 /opt/homebrew/var/www/Documents/webtrees/app/Webtrees.php(275): Middleland\Dispatcher-&gt;dispatch(Object(Nyholm\Psr7\ServerRequest))
#4 /opt/homebrew/var/www/Documents/webtrees/app/Webtrees.php(262): Fisharebest\Webtrees\Webtrees::dispatch(Object(Nyholm\Psr7\ServerRequest), Array)
#5 /opt/homebrew/var/www/Documents/webtrees/index.php(51): Fisharebest\Webtrees\Webtrees-&gt;httpRequest()
#6 {main}
  thrown in <b>/opt/homebrew/var/www/Documents/webtrees/app/Http/Middleware/EmitResponse.php</b> on line <b>112</b><br />