diff --git a/README.md b/README.md
index 584abbb..bd66d49 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,3 @@
-from argenta.app.autocompleter import AutoCompleter
-
 # Argenta
 
 ---
diff --git a/argenta/app/exceptions.py b/argenta/app/exceptions.py
index 28d047f..a586c1b 100644
--- a/argenta/app/exceptions.py
+++ b/argenta/app/exceptions.py
@@ -1,8 +1,3 @@
-class InvalidRouterInstanceException(Exception):
-    def __str__(self):
-        return "Invalid Router Instance"
-
-
 class NoRegisteredRoutersException(Exception):
     def __str__(self):
         return "No Registered Router Found"
diff --git a/argenta/app/models.py b/argenta/app/models.py
index 135c867..3662fe6 100644
--- a/argenta/app/models.py
+++ b/argenta/app/models.py
@@ -15,8 +15,7 @@ from argenta.command.exceptions import (UnprocessedInputFlagException,
                                         RepeatedInputFlagsException,
                                         EmptyInputCommandException,
                                         BaseInputCommandException)
-from argenta.app.exceptions import (InvalidRouterInstanceException,
-                                    NoRegisteredRoutersException,
+from argenta.app.exceptions import (NoRegisteredRoutersException,
                                     NoRegisteredHandlersException)
 from argenta.app.registered_routers.entity import RegisteredRouters
 
@@ -201,6 +200,7 @@ class AppSetups(AppValidators, AppPrinters):
 
         for message in self._messages_on_startup:
             self._print_func(message)
+        print('\n\n')
 
         if not self._repeat_command_groups_description:
             self._print_command_group_description()
@@ -253,9 +253,6 @@ class App(AppSetters, AppNonStandardHandlers, AppSetups):
 
 
     def include_router(self, router: Router) -> None:
-        if not isinstance(router, Router):
-            raise InvalidRouterInstanceException()
-
         router.set_ignore_command_register(self._ignore_command_register)
         self._registered_routers.add_registered_router(router)
 
diff --git a/mock/mock_app/main.py b/mock/mock_app/main.py
index 76a91a0..d02b965 100644
--- a/mock/mock_app/main.py
+++ b/mock/mock_app/main.py
@@ -16,7 +16,7 @@ def main():
 
     app.add_message_on_startup(PredeterminedMessages.USAGE)
     app.add_message_on_startup(PredeterminedMessages.AUTOCOMPLETE)
-    app.add_message_on_startup(PredeterminedMessages.HELP + '\n\n')
+    app.add_message_on_startup(PredeterminedMessages.HELP)
 
     app.start_polling()
 
diff --git a/pyproject.toml b/pyproject.toml
index 3519f81..2ff6c68 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "argenta"
-version = "0.5.0-beta"
+version = "0.5.0-beta2"
 description = "Python library for creating TUI"
 authors = [
     {name = "kolo", email = "kolo.is.main@gmail.com"}