EC2 stops after Start Instance is initiated

Hello Team,

I'm trying to understand what's causing one of my ec2 instances to stop after start is selected. It was working for a long time and everything was fine. And then i decided to restart the instance (that actually did in the past and also was good), but after stop and trying to start the instance again, i get an error : "StateReason": { "Code": "Client.InstanceInitiatedShutdown", "Message": "Client.InstanceInitiatedShutdown: Instance initiated shutdown" },

The state reason doesn't give any real details as to what is causing this.

Please help what to do here.

This command is executed: aws ec2 describe-instances --instance-id i-096e424ce8df9bfcc --output json:

{
    "Reservations": [
        {
            "Groups": [],
            "Instances": [
                {
                    "AmiLaunchIndex": 0,
                    "ImageId": "ami-01e36b7901e884a10",
                    "InstanceId": "i-096e424ce8df9bfcc",
                    "InstanceType": "t2.small",
                    "KeyName": "adventiqa",
                    "LaunchTime": "2023-10-05T19:41:27+00:00",
                    "Monitoring": {
                        "State": "disabled"
                    },
                    "BlockDeviceMappings": [
                        {
                            "DeviceName": "/dev/sda1",
                            "Ebs": {
                                "AttachTime": "2023-10-04T22:42:20+00:00",
                                "DeleteOnTermination": false,
                                "Status": "attached",
                                "VolumeId": "vol-0cf96112dcb0c41a1"
                            }
                        }
                    ],
                    "RootDeviceName": "/dev/sda1",
                    "RootDeviceType": "ebs",
                    "SecurityGroups": [
                        {
                            "GroupName": "CentOS 7 -x86_64- - with Updates HVM-2002_01-AutogenByAWSMP-",
                            "GroupId": "sg-000b28d463e91f5f4"
                        }
                    ],
                    "SourceDestCheck": true,
                    "StateReason": {
                        "Code": "Client.InstanceInitiatedShutdown",
                        "Message": "Client.InstanceInitiatedShutdown: Instance initiated shutdown"
                    },
                    "VirtualizationType": "hvm",
                    "CpuOptions": {
                        "CoreCount": 1,
                        "ThreadsPerCore": 1
                    },
                    "CapacityReservationSpecification": {
                        "CapacityReservationPreference": "open"
                    },
                    "HibernationOptions": {
                        "Configured": false
                    },
                    "MetadataOptions": {
                        "State": "applied",
                        "HttpTokens": "optional",
                        "HttpPutResponseHopLimit": 1,
                        "HttpEndpoint": "enabled",
                        "HttpProtocolIpv6": "disabled",
                        "InstanceMetadataTags": "disabled"
                    },
                    "EnclaveOptions": {
                        "Enabled": false
                    },
                    "PlatformDetails": "Linux/UNIX",
                    "UsageOperation": "RunInstances",
                    "UsageOperationUpdateTime": "2021-03-10T21:42:52+00:00",
                    "PrivateDnsNameOptions": {},
                    "MaintenanceOptions": {
                        "AutoRecovery": "default"
                    }
                }
            ]
        }
    ]
}

The instance id is i-096e424ce8df9bfcc