diff --git a/CHANGELOG.md b/CHANGELOG.md
index 133d4fb7..56e9ce3a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,20 +9,24 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [1.4.4 - 2023-12-xx]
 
+### Added
+
+- Added ability for `requestToExApp` and `aeRequestToExApp` methods, to send `multipart` requests. #168
+
 ### Fixed
 
-- invalid default Nextcloud URL, incorrect url with slash at the end processing. #169  
+- Processing of invalid default Nextcloud URL/incorrect url with slash at the end. #169
+- `occ app_api:app:register` error message in case of missing deploy of ExApp. #172
 
 ## [1.4.3 - 2023-12-18]
 
 ### Added
 
-- links to new apps that uses AppAPI. #158
-- added ability for `requestToExApp` and `aeRequestToExApp` methods, to send `multipart` requests. #168
+- Links to new apps that uses AppAPI. #158
 
 ### Fixed
 
-- invalid timeout condition check for `/init` endpoint. #155
+- Invalid timeout condition check for `/init` endpoint. #155
 
 ## [1.4.2 - 2023-12-13]
 
diff --git a/lib/Command/ExApp/Register.php b/lib/Command/ExApp/Register.php
index 70f9b5cd..7a1c6827 100644
--- a/lib/Command/ExApp/Register.php
+++ b/lib/Command/ExApp/Register.php
@@ -72,6 +72,10 @@ protected function execute(InputInterface $input, OutputInterface $output): int
 
 		if ($daemonConfig->getAcceptsDeployId() === $this->dockerActions->getAcceptsDeployId()) {
 			$exAppInfo = $this->dockerActions->loadExAppInfo($appId, $daemonConfig);
+			if (array_key_exists('error', $exAppInfo)) {
+				$output->writeln(sprintf('%sDid application was deployed before registration?', $exAppInfo['error']));
+				return 2;
+			}
 		} elseif ($daemonConfig->getAcceptsDeployId() === $this->manualActions->getAcceptsDeployId()) {
 			$exAppJson = $input->getOption('json-info');
 			if ($exAppJson === null) {