diff --git a/galaxy/api/errors.py b/galaxy/api/errors.py
index 24800c8..1099a16 100644
--- a/galaxy/api/errors.py
+++ b/galaxy/api/errors.py
@@ -20,6 +20,10 @@ class BackendError(ApplicationError):
     def __init__(self, data=None):
         super().__init__(4, "Backend error", data)
 
+class UnknownBackendResponse(ApplicationError):
+    def __init__(self, data=None):
+        super().__init__(4, "Backend responded in uknown way", data)
+
 class InvalidCredentials(ApplicationError):
     def __init__(self, data=None):
         super().__init__(100, "Invalid credentials", data)
diff --git a/setup.py b/setup.py
index 3510b19..e79381f 100644
--- a/setup.py
+++ b/setup.py
@@ -2,7 +2,7 @@ from setuptools import setup, find_packages
 
 setup(
     name="galaxy.plugin.api",
-    version="0.9",
+    version="0.10",
     description="Galaxy python plugin API",
     author='Galaxy team',
     author_email='galaxy@gog.com',