diff --git a/http_client/src/http_client/auth.py b/http_client/src/http_client/auth.py
index f7b18da7..fd86da4f 100644
--- a/http_client/src/http_client/auth.py
+++ b/http_client/src/http_client/auth.py
@@ -60,12 +60,9 @@ def generate_application_jwt(self):
         try:
             return self._jwt_client.generate_application_jwt(self._jwt_claims)
         except AttributeError as err:
-            if '_jwt_client' in str(err):
-                raise JWTGenerationError(
-                    'JWT generation failed. Check that you passed in valid values for "application_id" and "private_key".'
-                )
-            else:
-                raise err
+            raise JWTGenerationError(
+                'JWT generation failed. Check that you passed in valid values for "application_id" and "private_key".'
+            ) from err
 
     def create_basic_auth_string(self):
         hash = b64encode(f'{self.api_key}:{self.api_secret}'.encode('utf-8')).decode(
diff --git a/http_client/tests/data/400.txt b/http_client/tests/data/400.txt
new file mode 100644
index 00000000..4ff18741
--- /dev/null
+++ b/http_client/tests/data/400.txt
@@ -0,0 +1 @@
+Error: Bad Request
\ No newline at end of file
diff --git a/http_client/tests/test_http_client.py b/http_client/tests/test_http_client.py
index 969f5379..9d9a7338 100644
--- a/http_client/tests/test_http_client.py
+++ b/http_client/tests/test_http_client.py
@@ -117,6 +117,18 @@ def test_http_response_general_error():
         assert '400 response from https://example.com/get_json.' in err.message
 
 
+@responses.activate
+def test_http_response_general_text_error():
+    build_response(path, 'GET', 'https://example.com/get', '400.txt', 400, 'text/plain')
+
+    client = HttpClient(Auth())
+    try:
+        client.get(host='example.com', request_path='/get')
+    except HttpRequestError as err:
+        assert err.response.text == 'Error: Bad Request'
+        assert '400 response from https://example.com/get.' in err.message
+
+
 @responses.activate
 def test_authentication_error():
     build_response(path, 'GET', 'https://example.com/get_json', '401.json', 401)
diff --git a/number_insight_v2/src/number_insight_v2/number_insight_v2.py b/number_insight_v2/src/number_insight_v2/number_insight_v2.py
index ff3d76d5..84199b97 100644
--- a/number_insight_v2/src/number_insight_v2/number_insight_v2.py
+++ b/number_insight_v2/src/number_insight_v2/number_insight_v2.py
@@ -1,26 +1,8 @@
-import requests
-from package1.module1 import say_hello
+from http_client.http_client import HttpClient
 
 
-def say_goodbye():
-    """Says goodbye to the caller."""
-    print("goodbye")
-    return 0
+class NI2:
+    """Number Insight API V2."""
 
-
-def say_hello_then_goodbye():
-    """Says hello then goodbye to the caller using say_hello from another package."""
-    say_hello()
-    print("goodbye")
-    return 0
-
-
-def make_http_request():
-    """Makes an HTTP request."""
-    response = requests.get("https://example.com")
-    print(response)
-    return response
-
-
-say_hello_then_goodbye()
-make_http_request()
+    def __init__(self, http_client: HttpClient) -> None:
+        self._http_client = http_client
diff --git a/vonage/src/vonage/vonage.py b/vonage/src/vonage/vonage.py
index 10a3a81d..7538d36a 100644
--- a/vonage/src/vonage/vonage.py
+++ b/vonage/src/vonage/vonage.py
@@ -2,6 +2,8 @@
 
 from http_client.http_client import HttpClient
 
+from number_insight_v2.number_insight_v2 import NI2
+
 
 class Vonage:
     """Main Server SDK class for using Vonage APIs.
@@ -33,7 +35,7 @@ def __init__(
 
         self._http_client = HttpClient(self._auth, http_client_options)
 
-        # self.ni2 = NI2(self._http_client)
+        self.ni2 = NI2(self._http_client)
 
     @property
     def auth(self):