diff --git a/kiri-engine/Abstracts/Logger.php b/kiri-engine/Abstracts/Logger.php
index 42a7c4a5..7c18e9a9 100644
--- a/kiri-engine/Abstracts/Logger.php
+++ b/kiri-engine/Abstracts/Logger.php
@@ -233,15 +233,15 @@ class Logger implements LoggerInterface
      */
     private function _string($context): string
     {
-        if ($context instanceof \Throwable) {
-            $context = 'file -> ' . $context->getFile() . PHP_EOL . 'line -> ' . $context->getLine() . PHP_EOL;
-        }
-        if (is_array($context) && isset($context[0]) && $context[0] instanceof \Throwable) {
-            $context = 'file -> ' . $context[0]->getFile() . PHP_EOL . 'line -> ' . $context[0]->getLine() . PHP_EOL;
-        }
         if (is_string($context)) {
             return $context . PHP_EOL;
         }
+        if ($context instanceof \Throwable) {
+            return 'file -> ' . $context->getFile() . PHP_EOL . 'line -> ' . $context->getLine() . PHP_EOL;
+        }
+        if (is_array($context) && isset($context[0]) && $context[0] instanceof \Throwable) {
+            return 'file -> ' . $context[0]->getFile() . PHP_EOL . 'line -> ' . $context[0]->getLine() . PHP_EOL;
+        }
         return implode(PHP_EOL, $context);
     }
 }
diff --git a/kiri-engine/Error/StdoutLogger.php b/kiri-engine/Error/StdoutLogger.php
index 91d9597e..f158776f 100644
--- a/kiri-engine/Error/StdoutLogger.php
+++ b/kiri-engine/Error/StdoutLogger.php
@@ -28,7 +28,7 @@ class StdoutLogger extends Logger
 		} else {
 			$this->errors[$model] = $message;
         }
-        $this->error($model, [$message]);
+        $this->error($model, [throwable($message)]);
         return false;
 	}