diff --git a/README.md b/README.md
index 30e557c..bc9ab39 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,8 @@
 
 A basic echo-bot built with slixmpp and slixmpp-omemo that relays your messages to a locally running ollama server with end to end encryption.
 
+<img src="./docs/ollama_slixmpp_omemo_bot.png" width="250">
+
 ## Dependancies
 
 - [ollama 0.1.14](https://ollama.com/download/linux)
@@ -23,11 +25,13 @@ pip install ollama; pip install ollama-python
 ## Usage
 
 First Terminal instance
+
 ```bash
 ollama serve
 ```
 
 Second Terminal instance
+
 ```bash
 PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION=python python ./src/ollama_slixmpp_omemo_bot/main.py
 # Enter JID: service-account@example-server.im
@@ -41,6 +45,8 @@ Recommended and tested clients:
 - Profanity
     - You may need to manually trust their fingerprint
 
+Typically when MissingOwnKeys exception raises, starting a new omemo session and manually trusting the fingerprint tends to resolve the issue.
+
 ## Credit
 
 [Slixmpp OMEMO plugin | Copyright (C) 2010  Nathanael C. Fritz | Copyright (C) 2019 Maxime “pep” Buquet <pep@bouah.net>](https://codeberg.org/sxavier/slixmpp-omemo/src/branch/main/examples/echo_client.py)
diff --git a/docs/index.html b/docs/index.html
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/docs/index.html
@@ -0,0 +1 @@
+
diff --git a/docs/index.md b/docs/index.md
deleted file mode 100644
index e69de29..0000000
diff --git a/docs/ollama_slixmpp_omemo_bot.png b/docs/ollama_slixmpp_omemo_bot.png
new file mode 100644
index 0000000..77d9897
Binary files /dev/null and b/docs/ollama_slixmpp_omemo_bot.png differ
diff --git a/src/ollama_slixmpp_omemo_bot/ollama_bot.py b/src/ollama_slixmpp_omemo_bot/ollama_bot.py
index 0a0c8e2..1ca0c4a 100644
--- a/src/ollama_slixmpp_omemo_bot/ollama_bot.py
+++ b/src/ollama_slixmpp_omemo_bot/ollama_bot.py
@@ -105,12 +105,16 @@ class OllamaBot(ClientXMPP):
                 encrypted, mfrom, allow_untrusted
             )
             if body is not None:
-                decoded = body.decode("utf8")
+                decoded: Optional[str] = body.decode("utf8")
                 if self.is_command(decoded):
                     await self.handle_command(mto, mtype, decoded)
                 elif self.debug_level == LEVEL_DEBUG:
-                    ollama_server_response = self.message_to_ollama_server(decoded)
-                    await self.encrypted_reply(mto, mtype, f"{ollama_server_response}")
+                    ollama_server_response: Optional[str] = (
+                        self.message_to_ollama_server(decoded)
+                    )
+                    await self.encrypted_reply(
+                        mto, mtype, f"{ollama_server_response or ''}"
+                    )
         except MissingOwnKey:
             await self.plain_reply(
                 mto,
@@ -130,11 +134,11 @@ class OllamaBot(ClientXMPP):
                 f"Error: Your device '{exn.device}' is not in my trusted devices.",
             )
             await self.message_handler(msg, allow_untrusted=True)
-        except (EncryptionPrepareException,):
+        except EncryptionPrepareException:
             await self.plain_reply(
                 mto, mtype, "Error: I was not able to decrypt the message."
             )
-        except (Exception,) as exn:
+        except Exception as exn:
             await self.plain_reply(
                 mto,
                 mtype,
@@ -191,14 +195,15 @@ class OllamaBot(ClientXMPP):
                 )
                 raise
 
-    def message_to_ollama_server(self, msg: str) -> str:
-        response = ollama.chat(
-            model="llama3",
-            messages=[
-                {
-                    "role": "user",
-                    "content": f"{msg}",
-                },
-            ],
-        )
-        return response["message"]["content"]
+    def message_to_ollama_server(self, msg: Optional[str]) -> Optional[str]:
+        if msg is not None:
+            response = ollama.chat(
+                model="llama3",
+                messages=[
+                    {
+                        "role": "user",
+                        "content": f"{msg}",
+                    },
+                ],
+            )
+            return response["message"]["content"]