diff --git a/src/snek/system/docker.py b/src/snek/system/docker.py
index 393c3d6..3624941 100644
--- a/src/snek/system/docker.py
+++ b/src/snek/system/docker.py
@@ -3,7 +3,11 @@ import json
 import yaml
 import asyncio
 import subprocess
-import pty 
+try:
+    import pty
+except Exception as ex:
+    print("You are not able to run a terminal. See error:")
+    print(ex)
 import os
 
 class ComposeFileManager:
diff --git a/src/snek/view/channel.py b/src/snek/view/channel.py
index c3b8587..85cace4 100644
--- a/src/snek/view/channel.py
+++ b/src/snek/view/channel.py
@@ -7,9 +7,11 @@ from os.path import isfile
 import aiofiles
 from aiohttp import web
 from PIL import Image
+from pillow_heif import register_heif_opener
 
 from snek.system.view import BaseView
 
+register_heif_opener()
 
 class ChannelAttachmentView(BaseView):
     async def get(self):