diff --git a/mautrix_telegram/commands/clean_rooms.py b/mautrix_telegram/commands/clean_rooms.py
index 05971af4..612c096c 100644
--- a/mautrix_telegram/commands/clean_rooms.py
+++ b/mautrix_telegram/commands/clean_rooms.py
@@ -13,6 +13,8 @@
 #
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
+from mautrix_appservice import MatrixRequestError
+
 from . import command_handler
 from .. import puppet as pu, portal as po
 
@@ -27,7 +29,10 @@ async def _find_rooms(intent):
     for room in rooms:
         portal = po.Portal.get_by_mxid(room)
         if not portal:
-            members = await intent.get_room_members(room)
+            try:
+                members = await intent.get_room_members(room)
+            except MatrixRequestError:
+                members = []
             if len(members) == 2:
                 other_member = members[0] if members[0] != intent.mxid else members[1]
                 if pu.Puppet.get_id_from_mxid(other_member):
diff --git a/mautrix_telegram/portal.py b/mautrix_telegram/portal.py
index 15312eb5..2138d848 100644
--- a/mautrix_telegram/portal.py
+++ b/mautrix_telegram/portal.py
@@ -29,7 +29,7 @@ from telethon.tl.functions.messages import *
 from telethon.tl.functions.channels import *
 from telethon.errors.rpc_error_list import *
 from telethon.tl.types import *
-from mautrix_appservice import MatrixRequestError
+from mautrix_appservice import MatrixRequestError, IntentError
 
 from .db import Portal as DBPortal, Message as DBMessage
 from . import puppet as p, user as u, formatter
@@ -360,7 +360,10 @@ class Portal:
         return link.link
 
     async def get_authenticated_matrix_users(self):
-        members = await self.main_intent.get_room_members(self.mxid)
+        try:
+            members = await self.main_intent.get_room_members(self.mxid)
+        except MatrixRequestError:
+            return []
         authenticated = []
         for member in members:
             if p.Puppet.get_id_from_mxid(member) or member == self.main_intent.mxid:
@@ -380,7 +383,7 @@ class Portal:
             if user != intent.mxid:
                 try:
                     await intent.kick(room_id, user, f"{type} deleted.")
-                except MatrixRequestError:
+                except (MatrixRequestError, IntentError):
                     pass
         await intent.leave_room(room_id)