Hi Muhammad,

Please follow below steps: (if it's personal instance)

1. Go to "Settings"

2. Search "InterSystems Server Manager"

3. Click "Edit in setting.json"

4. Edit

"intersystems.servers": {     
    "irishealth": {
        "webServer": {
            "scheme": "http",
            "host": "localhost",
            "port": 52773
        },
        "username": "_system",
        "password": "system"
    }
}

Add your password in json,

5. Save "settings.json"

Thanks,