Error: Call to a member function emailUser() on bool

Deprecated (8192): Return type of Cake\Collection\Iterator\MapReduce::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice [CORE/src/Collection/Iterator/MapReduce.php, line 128]

	`}`
	`/* @var callable $callable */`
	`$callable = [$this, $request->getParam('action')];`

	`$result = $callable(...array_values($request->getParam('pass')));`
	`if ($result instanceof Response) {`
	`$this->response = $result;`
	`}`

	`if ($result instanceof Response) {`
	`return $result;`
	`}`

	`$response = $controller->invokeAction();`
	`if ($response !== null && !($response instanceof Response)) {`
	`throw new LogicException('Controller actions can only return Cake\Http\Response or null.');`
	`}`

	`} else {`
	`$controller = $this->factory->create($request, $response);`
	`}`

	`$response = $this->_invoke($controller);`
	`if ($request->getParam('return')) {`
	`return $response;`
	`}`

	`* @return \Psr\Http\Message\ResponseInterface`
	`*/`
	`public function __invoke(ServerRequestInterface $request, ResponseInterface $response, $next)`
	`{`
	`return $this->getDispatcher()->dispatch($request, $response);`
	`}`

	`/**`
	`* Get the ActionDispatcher.`

	`$next = $this->middleware->get($this->index);`
	`if ($next) {`
	`$this->index++;`

	`return $next($request, $response, $this);`
	`}`

	`// End of the queue`
	`return $response;`

	`);`
	`}`
	`$matching = Router::getRouteCollection()->getMiddleware($middleware);`
	`if (!$matching) {`
	`return $next($request, $response);`
	`}`
	`$matching[] = $next;`
	`$middleware = new MiddlewareQueue($matching);`
	`$runner = new Runner();`

	`public function __invoke($request, $response, $next)`
	`{`
	`$url = $request->getUri()->getPath();`
	`if (strpos($url, '..') !== false \|\| strpos($url, '.') === false) {`
	`return $next($request, $response);`
	`}`

	`if (strpos($url, '/.') !== false) {`
	`return $next($request, $response);`

	`*/`
	`public function __invoke($request, $response, $next)`
	`{`
	`try {`
	`return $next($request, $response);`
	`} catch (Throwable $exception) {`
	`return $this->handleException($exception, $request, $response);`
	`} catch (Exception $exception) {`
	`return $this->handleException($exception, $request, $response);`

	`{`
	`$this->middleware = $middleware;`
	`$this->index = 0;`

	`return $this->__invoke($request, $response);`
	`}`

	`/**`
	`* @param \Psr\Http\Message\ServerRequestInterface $request The server request`

	`}`
	`$this->dispatchEvent('Server.buildMiddleware', ['middleware' => $middleware]);`
	`$middleware->add($this->app);`

	`$response = $this->runner->run($middleware, $request, $response);`

	`if (!($response instanceof ResponseInterface)) {`
	`throw new RuntimeException(sprintf(`
	`'Application did not create a response. Got "%s" instead.',`

	`// Bind your application to the server.`
	`$server = new Server(new Application(dirname(__DIR__) . '/config'));`

	`// Run the request/response through the application and emit the response.`
	`$server->emit($server->run());`

Could this be caused by using Auto-Tables?