diff --git a/setup.cfg b/setup.cfg
index 9c59e617..604a5d43 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -30,7 +30,7 @@ package_dir =
 # DON'T CHANGE THE FOLLOWING LINE! IT WILL BE UPDATED BY PYSCAFFOLD!
 setup_requires = pyscaffold>=3.2a0,<3.3a0
 # Add here dependencies of your project (semicolon/line-separated), e.g.
-install_requires = 
+install_requires =
     coincurve; python_version<"3.11"
     coincurve>=17.0.0; python_version>="3.11"   # Technically, this should be >=18.0.0 but there is a conflict with eciespy
     aiohttp>=3.8.3
@@ -38,7 +38,7 @@ install_requires =
     eciespy>=0.3.13; python_version>="3.11"
     typing_extensions
     typer
-    aleph-message~=0.3.1
+    aleph-message~=0.3.2
     eth_account>=0.4.0
     # Required to fix a dependency issue with parsimonious and Python3.11
     eth_abi==4.0.0b2; python_version>="3.11"
diff --git a/src/aleph/sdk/chains/nuls1.py b/src/aleph/sdk/chains/nuls1.py
index 56e34d23..c5629fb7 100644
--- a/src/aleph/sdk/chains/nuls1.py
+++ b/src/aleph/sdk/chains/nuls1.py
@@ -275,6 +275,8 @@ def serialize(self, with_length=False):
             return output
 
     def verify(self, message):
+        if not self.pub_key:
+            raise ValueError("Missing public key ")
         pub = PublicKey(self.pub_key)
         message = VarInt(len(message)).encode() + message
         # LOGGER.debug("Comparing with %r" % (MESSAGE_TEMPLATE.format(message).encode()))
diff --git a/src/aleph/sdk/conf.py b/src/aleph/sdk/conf.py
index 6fcb9ae7..264c8c9f 100644
--- a/src/aleph/sdk/conf.py
+++ b/src/aleph/sdk/conf.py
@@ -24,7 +24,6 @@ class Settings(BaseSettings):
     REMOTE_CRYPTO_UNIX_SOCKET: Optional[str] = None
     ADDRESS_TO_USE: Optional[str] = None
 
-    DEFAULT_CHANNEL: str = "TEST"
     DEFAULT_RUNTIME_ID: str = (
         "bd79839bf96e595a06da5ac0b6ba51dea6f7e2591bb913deccded04d831d29f4"
     )
@@ -34,9 +33,6 @@ class Settings(BaseSettings):
 
     CODE_USES_SQUASHFS: bool = which("mksquashfs") is not None  # True if command exists
 
-    VM_URL_PATH = "https://aleph.sh/vm/{hash}"
-    VM_URL_HOST = "https://{hash_base32}.aleph.sh"
-
     class Config:
         env_prefix = "ALEPH_"
         case_sensitive = False
diff --git a/src/aleph/sdk/types.py b/src/aleph/sdk/types.py
index b104c506..67c0dda3 100644
--- a/src/aleph/sdk/types.py
+++ b/src/aleph/sdk/types.py
@@ -2,7 +2,7 @@
 from enum import Enum
 from typing import Dict, Protocol, TypeVar
 
-__all__ = ("StorageEnum", "Account", "AccountFromPrivateKey")
+__all__ = ("StorageEnum", "Account", "AccountFromPrivateKey", "GenericMessage")
 
 from aleph_message.models import AlephMessage