diff --git a/prowler/providers/aws/services/awslambda/awslambda_service.py b/prowler/providers/aws/services/awslambda/awslambda_service.py
index 2e341ef0..d11e27b0 100644
--- a/prowler/providers/aws/services/awslambda/awslambda_service.py
+++ b/prowler/providers/aws/services/awslambda/awslambda_service.py
@@ -162,9 +162,14 @@ class Lambda:
         logger.info("Lambda - List Tags...")
         try:
             for function in self.functions.values():
-                regional_client = self.regional_clients[function.region]
-                response = regional_client.list_tags(Resource=function.arn)["Tags"]
-                function.tags = [response]
+                try:
+                    regional_client = self.regional_clients[function.region]
+                    response = regional_client.list_tags(Resource=function.arn)["Tags"]
+                    function.tags = [response]
+                except ClientError as e:
+                    if e.response["Error"]["Code"] == "ResourceNotFoundException":
+                        function.tags = []
+
         except Exception as error:
             logger.error(
                 f"{regional_client.region} -- {error.__class__.__name__}[{error.__traceback__.tb_lineno}]: {error}"
diff --git a/prowler/providers/aws/services/backup/backup_service.py b/prowler/providers/aws/services/backup/backup_service.py
index 1f531fac..94ffc959 100644
--- a/prowler/providers/aws/services/backup/backup_service.py
+++ b/prowler/providers/aws/services/backup/backup_service.py
@@ -1,5 +1,6 @@
 import threading
 from datetime import datetime
+from typing import Optional
 
 from pydantic import BaseModel
 
@@ -172,4 +173,4 @@ class BackupReportPlan(BaseModel):
     region: str
     name: str
     last_attempted_execution_date: datetime
-    last_successful_execution_date: datetime
+    last_successful_execution_date: Optional[datetime]
diff --git a/prowler/providers/aws/services/trustedadvisor/trustedadvisor_service.py b/prowler/providers/aws/services/trustedadvisor/trustedadvisor_service.py
index f745f381..1cd02217 100644
--- a/prowler/providers/aws/services/trustedadvisor/trustedadvisor_service.py
+++ b/prowler/providers/aws/services/trustedadvisor/trustedadvisor_service.py
@@ -47,6 +47,10 @@ class TrustedAdvisor:
         except ClientError as error:
             if error.response["Error"]["Code"] == "SubscriptionRequiredException":
                 self.enabled = False
+            elif error.response["Error"]["Code"] == "InvalidParameterValueException":
+                logger.warning(
+                    f"{self.client.region} -- {error.__class__.__name__}[{error.__traceback__.tb_lineno}]: {error}"
+                )
             else:
                 logger.error(
                     f"{self.client.region} -- {error.__class__.__name__}[{error.__traceback__.tb_lineno}]: {error}"