diff --git a/src/ErrorHandlingMode.php b/src/ErrorHandlingMode.php
new file mode 100644
index 000000000..de7ccb927
--- /dev/null
+++ b/src/ErrorHandlingMode.php
@@ -0,0 +1,22 @@
+<?php
+
+declare(strict_types = 1);
+
+namespace Graphpinator;
+
+enum ErrorHandlingMode
+{
+    // Catch all exceptions. ClientAware exceptions returns corresponding result, unknown exceptions throw an "Unknown error".
+    case ALL;
+    // Catch ClientAware exceptions and return corresponding result, unknown exceptions are rethrown.
+    case CLIENT_AWARE;
+    // Rethrow all exceptions.
+    case NONE;
+
+    public static function fromBool(bool $value) : self
+    {
+        return $value
+            ? self::ALL
+            : self::NONE;
+    }
+}
diff --git a/src/Graphpinator.php b/src/Graphpinator.php
index 47f230b2e..d27920b17 100644
--- a/src/Graphpinator.php
+++ b/src/Graphpinator.php
@@ -110,7 +110,7 @@ private static function getLogMessage(\Throwable $exception) : string
 
     private static function getLogLevel(\Throwable $exception) : string
     {
-        if ($exception instanceof \Graphpinator\Exception\GraphpinatorBase) {
+        if ($exception instanceof \Graphpinator\Exception\ClientAware) {
             return $exception->isOutputable()
                 ? \Psr\Log\LogLevel::INFO
                 : \Psr\Log\LogLevel::ERROR;