diff --git a/checker.py b/checker.py
index 4a27d69..a24430a 100644
--- a/checker.py
+++ b/checker.py
@@ -1,3 +1,8 @@
+# flake8: noqa
+# pylint: disable=broad-exception-raised, raise-missing-from, too-many-arguments, redefined-outer-name
+# pylance: disable=reportMissingImports, reportMissingModuleSource, reportGeneralTypeIssues
+# type: ignore
+
 import re
 from datetime import datetime, timedelta, timezone
 import subprocess
@@ -6,6 +11,7 @@ import time
 import random
 import sys
 import pkg_resources
+import requests
 
 required_packages = ['grist-api', 'colorama']
 installed_packages = [pkg.key for pkg in pkg_resources.working_set]
@@ -16,7 +22,7 @@ for package in required_packages:
 
 from grist_api import GristDocAPI
 import colorama
-import requests
+
 import logging
 import socket
 
@@ -88,40 +94,40 @@ class GRIST:
         raise ValueError(f"Setting {key} not found")
 
 
-def check_logs(logger):
+def check_logs(log_handler):
     # Initialize counters
     error_count = 0
     sync_count = 0
     total_challenges = 0
-    
+
     try:
-        result = subprocess.run(['docker', 'compose', 'logs', '--since', '24h'], cwd='/root/node/', capture_output=True, text=True)
-        log_content = result.stdout
+        logs = subprocess.run(['docker', 'compose', 'logs', '--since', '24h'], cwd='/root/node/', capture_output=True, text=True, check=True)
+        log_content = logs.stdout
     except subprocess.CalledProcessError as e:
-        raise Exception(f"Error running docker compose logs: {e}")
+        raise RuntimeError(f"Error running docker compose logs: {e}") from e
     
     for line in log_content.split('\n'):
         if "Error from tendermint rpc" in line: 
             error_count += 1
-            logger.error(f"RPC error: {line}")
+            log_handler.error(f"RPC error: {line}")
         if "Is your verifier's account funded" in line:
-            logger.error(f"Verifier account not funded: {line}")
+            log_handler.error(f"Verifier account not funded: {line}")
             error_count += 1
         if "Synced with network" in line:
             sync_count += 1
-            logger.info(f"Synced with network: {line}")
+            log_handler.info(f"Synced with network: {line}")
 
         challenge_match = re.search(r'made (\d+) secret challenges', line)
         if challenge_match:
             total_challenges += int(challenge_match.group(1))
-            logger.info(f"Made {total_challenges} secret challenges: {line}")
-    result = {
+            log_handler.info(f"Made {total_challenges} secret challenges: {line}")
+    data = {
         "errors": error_count,
         "sync_events": sync_count, 
         "total_challenges": total_challenges
     }
-    logger.info(f"Result: {result}")
-    return result
+    log_handler.info(f"Result: {data}")
+    return data
 
 if __name__ == "__main__":
     print("Checker started")