diff --git a/Core/lib/caller.php b/Core/lib/caller.php
index c5c65db75..1f850a747 100644
--- a/Core/lib/caller.php
+++ b/Core/lib/caller.php
@@ -160,5 +160,5 @@ function df_caller_module(int $o = 0):string {
 		# https://github.com/mage2pro/core/issues/268
 		|| df_bt_entry_is_phtml($e)
 	;}));
-	return df_bt_entry_is_method($e) ? df_module_name(df_cc_method($e)) : df_module_name_by_path($e['file']);
+	return df_bt_entry_is_method($e) ? df_module_name(df_cc_method($e)) : df_module_name_by_path(df_bt_entry_file($e));
 }
\ No newline at end of file
diff --git a/Qa/Trace.php b/Qa/Trace.php
index 9b5704b29..1a750a32e 100644
--- a/Qa/Trace.php
+++ b/Qa/Trace.php
@@ -24,24 +24,9 @@ function __construct(array $ff) {
 		 * а не возбуждает исключительную ситуацию.
 		 * Однако мне в стеке вызовов в любом случае не нужна бинарная каша,
 		 * поэтому я отсекаю ту часть стека, которая находится внутри Phar.
-		 * 2023-01-28
-		 * 1) The 'file' key can be absent in a stack frame, e.g.:
-		 *	{
-		 *		"function": "loadClass",
-		 *		"class": "Composer\\Autoload\\ClassLoader",
-		 *		"type": "->",
-		 *		"args": ["Df\\Framework\\Plugin\\App\\Router\\ActionList\\Interceptor"]
-		 *	},
-		 *	{
-		 *		"function": "spl_autoload_call",
-		 *		"args": ["Df\\Framework\\Plugin\\App\\Router\\ActionList\\Interceptor"]
-		 *	},
-		 * 2) «Argument 1 passed to df_starts_with() must be of the type string, null given,
-		 * called in vendor/mage2pro/core/Qa/Trace.php on line 28»: https://github.com/mage2pro/core/issues/186
-		 * 3) @see \Df\Qa\Trace\Frame::filePath()
 		 * 2023-07-26 "Implement `df_filter_tail()`": https://github.com/mage2pro/core/issues/263
 		 */
-		$ff = df_filter_tail($ff, function(array $f):bool {return df_starts_with(dfa($f, 'file', ''), 'phar://');});
+		$ff = df_filter_tail($ff, function(array $f):bool {return df_starts_with(df_bt_entry_file($f), 'phar://');});
 		$this->_frames = df_map($ff, function(array $f):F {return F::i($f);});
 	}
 
diff --git a/Qa/Trace/Frame.php b/Qa/Trace/Frame.php
index a557bed3a..8213b3d69 100644
--- a/Qa/Trace/Frame.php
+++ b/Qa/Trace/Frame.php
@@ -20,6 +20,8 @@ final class Frame extends \Df\Core\O {
 	 * 2) @see \Df\Qa\Trace::__construct()
 	 * 3) «Argument 1 passed to df_path_relative() must be of the type string, null given,
 	 * called in vendor/mage2pro/core/Qa/Trace/Formatter.php on line 37»: https://github.com/mage2pro/core/issues/187
+	 * @see df_bt_entry_file()
+	 * @see \Df\Sentry\Trace::info()
 	 * @used-by \Df\Qa\Trace\Formatter::frame()
 	 */
 	function filePath():string {return (string)$this['file'];}
diff --git a/Qa/lib/bt/entry.php b/Qa/lib/bt/entry.php
index c6dc9ac6e..2c2f8502e 100644
--- a/Qa/lib/bt/entry.php
+++ b/Qa/lib/bt/entry.php
@@ -1,10 +1,34 @@
 <?php
 /**
  * 2023-07-26 "Implement `df_bt_entry_file()`": https://github.com/mage2pro/core/issues/279
+ * @see \Df\Qa\Trace\Frame::filePath()
+ * @see \Df\Sentry\Trace::info()
  * @used-by df_log_l()
  * @used-by df_bt_entry_is_phtml()
+ * @used-by df_caller_module()
+ * @used-by \Df\Qa\Trace::__construct()
+ * @used-by \Df\Sentry\Trace::info()
  */
-function df_bt_entry_file(array $e):string {return $e['file'];}
+function df_bt_entry_file(array $e):string {return
+	/**
+	 * 2023-01-28
+	 * 1) The 'file' key can be absent in a stack frame, e.g.:
+	 *	{
+	 *		"function": "loadClass",
+	 *		"class": "Composer\\Autoload\\ClassLoader",
+	 *		"type": "->",
+	 *		"args": ["Df\\Framework\\Plugin\\App\\Router\\ActionList\\Interceptor"]
+	 *	},
+	 *	{
+	 *		"function": "spl_autoload_call",
+	 *		"args": ["Df\\Framework\\Plugin\\App\\Router\\ActionList\\Interceptor"]
+	 *	},
+	 * 2) «Argument 1 passed to df_starts_with() must be of the type string, null given,
+	 * called in vendor/mage2pro/core/Qa/Trace.php on line 28»: https://github.com/mage2pro/core/issues/186
+	 * 3) @see \Df\Qa\Trace\Frame::filePath()
+	 */
+	dfa($e, 'file', '')
+;}
 
 /**
  * 2023-07-26
diff --git a/Sentry/Trace.php b/Sentry/Trace.php
index f5140c11e..c9071bfd9 100644
--- a/Sentry/Trace.php
+++ b/Sentry/Trace.php
@@ -34,9 +34,8 @@ static function info(array $frames):array {
 			 * @see \Df\Qa\Trace::__construct()
 			 * @see \Df\Qa\Trace\Frame::filePath()
 			 */
-			if (array_key_exists('file', $frame)) {
-				$context = self::code((string)$frame['file'], (int)$frame['line']);
-				$file = $frame['file'];
+			if ($file = df_bt_entry_file($frame)) {
+				$context = self::code($file, (int)$frame['line']);
 			}
 			else {
 				$file = '';
diff --git a/composer.json b/composer.json
index 467254bc4..768df163c 100644
--- a/composer.json
+++ b/composer.json
@@ -1,6 +1,6 @@
 {
 	"name": "mage2pro/core"
-	,"version": "10.0.0"
+	,"version": "10.0.1"
 	,"description": "Mage2.PRO core package."
 	,"type": "magento2-module"
 	,"homepage": "https://mage2.pro"