diff --git a/node_agent/config.py b/node_agent/config.py
index aa7b9f3..e7b78b0 100644
--- a/node_agent/config.py
+++ b/node_agent/config.py
@@ -1,5 +1,4 @@
 import os
-import sys
 import tomllib
 from pathlib import Path
 from collections import UserDict
@@ -24,7 +23,7 @@ class ConfigLoader(UserDict):
             with open(self.file, 'rb') as config:
                 return tomllib.load(config)
                 # todo: config schema validation
-        except (OSError, ValueError) as readerr:
-            raise ConfigLoadError(f'Cannot read config file: {self.file}: {readerr}') from readerr
         except tomllib.TOMLDecodeError as tomlerr:
             raise ConfigLoadError(f'Bad TOML syntax in config file: {self.file}: {tomlerr}') from tomlerr
+        except (OSError, ValueError) as readerr:
+            raise ConfigLoadError(f'Cannot read config file: {self.file}: {readerr}') from readerr
diff --git a/node_agent/utils/vmctl.py b/node_agent/utils/vmctl.py
index c949070..2d20bae 100644
--- a/node_agent/utils/vmctl.py
+++ b/node_agent/utils/vmctl.py
@@ -20,8 +20,9 @@ import logging
 import libvirt
 from docopt import docopt
 
-sys.path.append('/home/ge/Code/node-agent')
-from node_agent import LibvirtSession, VirtualMachine, VMError, VMNotFound
+from ..main import LibvirtSession
+from ..vm import VirtualMachine
+from ..exceptions import VMError, VMNotFound
 
 
 logger = logging.getLogger(__name__)
diff --git a/node_agent/utils/vmexec.py b/node_agent/utils/vmexec.py
index 2a0a339..0c217a4 100644
--- a/node_agent/utils/vmexec.py
+++ b/node_agent/utils/vmexec.py
@@ -16,8 +16,9 @@ import logging
 
 from docopt import docopt
 
-sys.path.append('/home/ge/Code/node-agent')
-from node_agent import LibvirtSession, VMNotFound, QemuAgent, QemuAgentError
+from ..main import LibvirtSession
+from ..vm import QemuAgent
+from ..exceptions import QemuAgentError, VMNotFound
 
 
 logger = logging.getLogger(__name__)
diff --git a/node_agent/vm/base.py b/node_agent/vm/base.py
index 693c403..db26a68 100644
--- a/node_agent/vm/base.py
+++ b/node_agent/vm/base.py
@@ -4,7 +4,7 @@ from ..main import LibvirtSession
 from ..exceptions import VMNotFound
 
 
-class VMBase:
+class VirtualMachineBase:
     def __init__(self, session: LibvirtSession, name: str):
         self.domname = name
         self.session = session.session  # virConnect object
diff --git a/node_agent/vm/ga.py b/node_agent/vm/ga.py
index a7ed09e..93865c5 100644
--- a/node_agent/vm/ga.py
+++ b/node_agent/vm/ga.py
@@ -1,14 +1,14 @@
 import json
 import logging
 from time import time, sleep
-from base64 import standard_b64encode, b64decode, b64encode
+from base64 import standard_b64encode, b64decode
 
 import libvirt
 import libvirt_qemu
 
 from ..main import LibvirtSession
 from ..exceptions import QemuAgentError
-from .base import VMBase
+from .base import VirtualMachineBase
 
 
 logger = logging.getLogger(__name__)
@@ -18,7 +18,7 @@ QEMU_TIMEOUT = 60  # seconds
 POLL_INTERVAL = 0.3  # also seconds
 
 
-class QemuAgent(VMBase):
+class QemuAgent(VirtualMachineBase):
     """
     Interacting with QEMU guest agent. Methods:
 
diff --git a/node_agent/vm/main.py b/node_agent/vm/main.py
index 5109915..9e12fe4 100644
--- a/node_agent/vm/main.py
+++ b/node_agent/vm/main.py
@@ -3,13 +3,13 @@ import logging
 import libvirt
 
 from ..exceptions import VMError
-from .base import VMBase
+from .base import VirtualMachineBase
 
 
 logger = logging.getLogger(__name__)
 
 
-class VirtualMachine(VMBase):
+class VirtualMachine(VirtualMachineBase):
 
     @property
     def name(self):
@@ -72,7 +72,7 @@ class VirtualMachine(VMBase):
         try:
             ret = self.domain.create()
         except libvirt.libvirtError as err:
-            raise VMError(f'Cannot start vm={self.domname} return_code={ret}: {err}') from err
+            raise VMError(f'Cannot start vm={self.domname}: {err}') from err
 
     def shutdown(self, force=False, sigkill=False) -> None:
         """
@@ -108,7 +108,7 @@ class VirtualMachine(VMBase):
         guest OS shutdown.
         """
         try:
-            self.domian.reset()
+            self.domain.reset()
         except libvirt.libvirtError as err:
             raise VMError(f'Cannot reset vm={self.domname}: {err}') from err