diff --git a/src/Libs/Initializer.php b/src/Libs/Initializer.php
index 2191d8a1..47a6d382 100644
--- a/src/Libs/Initializer.php
+++ b/src/Libs/Initializer.php
@@ -64,7 +64,7 @@ final class Initializer
             }
 
             // -- This is the official place where users are supposed to store .env file.
-            $dataPath = env('WS_DATA_PATH', fn() => inContainer() ? '/config' : __DIR__ . '/../../var');
+            $dataPath = env('WS_DATA_PATH', fn () => inContainer() ? '/config' : __DIR__ . '/../../var');
             if (file_exists($dataPath . '/config/.env')) {
                 loadEnvFile(file: $dataPath . '/config/.env', usePutEnv: true, override: true);
             }
@@ -107,7 +107,7 @@ final class Initializer
             $path = Config::get('path') . '/config/config.yaml';
 
             if (file_exists($path)) {
-                Config::init(fn() => array_replace_recursive(Config::getAll(), Yaml::parseFile($path)));
+                Config::init(fn () => array_replace_recursive(Config::getAll(), Yaml::parseFile($path)));
             }
 
             $path = Config::get('path') . '/config/servers.yaml';
@@ -160,10 +160,10 @@ final class Initializer
 
             $logger->error(message: "{class}: {error} at '{file}:{line}'. '{URI}'", context: [
                 'class' => 'PHP.Engine',
-                'error' => $error['message'],
-                'file' => $error['file'],
-                'line' => $error['line'],
-                'URI' => before($_SERVER['REQUEST_URI'], '?'),
+                'error' => $error['message'] ?? 'Unknown error',
+                'file' => $error['file'] ?? 'Unknown file',
+                'line' => $error['line'] ?? 'Unknown line',
+                'URI' => before($_SERVER['REQUEST_URI'] ?? '', '?'),
             ]);
         });
 
@@ -509,6 +509,7 @@ final class Initializer
                 ->pushHandler($wrap->withHandler(new StreamHandler($logfile, Level::Info, true)));
 
             if (true === $inContainer) {
+                assert($this->accessLog instanceof Logger);
                 $this->accessLog->pushHandler($wrap->withHandler(new StreamHandler('php://stderr', Level::Info, true)));
             }
         }
diff --git a/src/Libs/helpers.php b/src/Libs/helpers.php
index 59cecb52..0ed0d399 100644
--- a/src/Libs/helpers.php
+++ b/src/Libs/helpers.php
@@ -703,7 +703,7 @@ if (!function_exists('makeBackend')) {
                 backendUrl: new Uri(ag($backend, 'url')),
                 cache: $cache,
                 userContext: $userContext ?? Container::get(UserContext::class),
-                logger: ag($options, iLogger::class, fn() => Container::get(iLogger::class)),
+                logger: ag($options, iLogger::class, fn () => Container::get(iLogger::class)),
                 backendId: ag($backend, 'uuid', null),
                 backendToken: ag($backend, 'token', null),
                 backendUser: ag($backend, 'user', null),
@@ -823,16 +823,22 @@ if (!function_exists('getAppVersion')) {
      */
     function getAppVersion(): string
     {
+        static $_version;
+
+        if (null !== $_version) {
+            return $_version;
+        }
+
         $version = Config::get('version', 'dev-master');
 
         if ('$(version_via_ci)' === $version) {
-            $gitDir = ROOT_PATH . DIRECTORY_SEPARATOR . '.git' . DIRECTORY_SEPARATOR;
-
-            if (false === is_dir($gitDir)) {
-                return 'dev-master';
-            }
-
             try {
+                $gitDir = ROOT_PATH . DIRECTORY_SEPARATOR . '.git' . DIRECTORY_SEPARATOR;
+
+                if (false === is_dir($gitDir)) {
+                    throw new RuntimeException('Git directory not found.');
+                }
+
                 $cmdBranch = 'git -C {cwd} rev-parse --abbrev-ref HEAD';
                 $procBranch = Process::fromShellCommandline(r($cmdBranch, ['cwd' => escapeshellarg($gitDir)]));
                 $procBranch->run();
@@ -848,16 +854,21 @@ if (!function_exists('getAppVersion')) {
                 $procDate->run();
                 $commitDate = $procDate->isSuccessful() ? trim($procDate->getOutput()) : date('Ymd');
 
-                return r('{branch}-{date}-{commit}', [
+                $_version = r('{branch}-{date}-{commit}', [
                     'branch' => $branch,
                     'date' => $commitDate,
                     'commit' => $commit,
                 ]);
+
+                return $_version;
             } catch (Throwable) {
+                $_version = 'dev-master';
                 return 'dev-master';
             }
         }
 
+        $_version = $version;
+
         return $version;
     }
 }
@@ -910,7 +921,7 @@ if (!function_exists('array_keys_diff')) {
      */
     function array_keys_diff(array $base, array $list, bool $has = true): array
     {
-        return array_filter($base, fn($key) => $has === in_array($key, $list), ARRAY_FILTER_USE_KEY);
+        return array_filter($base, fn ($key) => $has === in_array($key, $list), ARRAY_FILTER_USE_KEY);
     }
 }
 
@@ -1320,7 +1331,7 @@ if (!function_exists('parseConfigValue')) {
     function parseConfigValue(mixed $value, Closure|null $callback = null): mixed
     {
         if (is_string($value) && preg_match('#%{(.+?)}#s', $value)) {
-            $val = preg_replace_callback('#%{(.+?)}#s', fn($match) => Config::get($match[1], $match[1]), $value);
+            $val = preg_replace_callback('#%{(.+?)}#s', fn ($match) => Config::get($match[1], $match[1]), $value);
             return null !== $callback && null !== $val ? $callback($val) : $val;
         }