diff --git a/instaloader/instaloadercontext.py b/instaloader/instaloadercontext.py
index ffca86e..a138092 100644
--- a/instaloader/instaloadercontext.py
+++ b/instaloader/instaloadercontext.py
@@ -351,10 +351,10 @@ class InstaloaderContext:
                     raise ConnectionException("\"window._sharedData\" does not contain required keys.")
                 # If GraphQL data is missing in `window._sharedData`, search for it in `__additionalDataLoaded`.
                 if 'graphql' not in post_or_profile_page[0]:
-                    match = re.search(r'window\.__additionalDataLoaded\([^{]+{"graphql":({.*})}\);</script>',
+                    match = re.search(r'window\.__additionalDataLoaded\(.*?({.*"graphql":.*})\);</script>',
                                       resp.text)
                     if match is not None:
-                        post_or_profile_page[0]['graphql'] = json.loads(match.group(1))
+                        post_or_profile_page[0]['graphql'] = json.loads(match.group(1))['graphql']
                 return resp_json
             else:
                 resp_json = resp.json()
diff --git a/instaloader/structures.py b/instaloader/structures.py
index 430aebb..78219a6 100644
--- a/instaloader/structures.py
+++ b/instaloader/structures.py
@@ -549,7 +549,7 @@ class Profile:
         """
         # pylint:disable=protected-access
         profile = cls(context, {'username': username.lower()})
-        profile._obtain_metadata()  # to raise ProfileNotExistException now in case username is invalid
+        profile._obtain_metadata()  # to raise ProfileNotExistsException now in case username is invalid
         return profile
 
     @classmethod