Step 1<br>Step 2<br>Step 3<br>Step 4<br>{
    "title": "ErrorException",
    "type": "ErrorException",
    "code": 500,
    "message": "ini_set(): Headers already sent. You cannot change the session module's ini settings at this time",
    "file": "/var/www/clients/client1/web15/web/system/Session/Handlers/FileHandler.php",
    "line": 321,
    "trace": [
        {
            "function": "errorHandler",
            "class": "CodeIgniter\\Debug\\Exceptions",
            "type": "->"
        },
        {
            "file": "/var/www/clients/client1/web15/web/system/Session/Handlers/FileHandler.php",
            "line": 321,
            "function": "ini_set"
        },
        {
            "file": "/var/www/clients/client1/web15/web/system/Session/Handlers/FileHandler.php",
            "line": 85,
            "function": "configureSessionIDRegex",
            "class": "CodeIgniter\\Session\\Handlers\\FileHandler",
            "type": "->"
        },
        {
            "file": "/var/www/clients/client1/web15/web/system/Config/Services.php",
            "line": 658,
            "function": "__construct",
            "class": "CodeIgniter\\Session\\Handlers\\FileHandler",
            "type": "->"
        },
        {
            "file": "/var/www/clients/client1/web15/web/system/Config/BaseService.php",
            "line": 253,
            "function": "session",
            "class": "CodeIgniter\\Config\\Services",
            "type": "::"
        },
        {
            "file": "/var/www/clients/client1/web15/web/system/Config/BaseService.php",
            "line": 194,
            "function": "__callStatic",
            "class": "CodeIgniter\\Config\\BaseService",
            "type": "::"
        },
        {
            "file": "/var/www/clients/client1/web15/web/system/Config/Services.php",
            "line": 637,
            "function": "getSharedInstance",
            "class": "CodeIgniter\\Config\\BaseService",
            "type": "::"
        },
        {
            "file": "/var/www/clients/client1/web15/web/system/Config/BaseService.php",
            "line": 253,
            "function": "session",
            "class": "CodeIgniter\\Config\\Services",
            "type": "::"
        },
        {
            "file": "/var/www/clients/client1/web15/web/system/Security/Security.php",
            "line": 221,
            "function": "__callStatic",
            "class": "CodeIgniter\\Config\\BaseService",
            "type": "::"
        },
        {
            "file": "/var/www/clients/client1/web15/web/system/Security/Security.php",
            "line": 202,
            "function": "configureSession",
            "class": "CodeIgniter\\Security\\Security",
            "type": "->"
        },
        {
            "file": "/var/www/clients/client1/web15/web/system/Config/Services.php",
            "line": 626,
            "function": "__construct",
            "class": "CodeIgniter\\Security\\Security",
            "type": "->"
        },
        {
            "file": "/var/www/clients/client1/web15/web/system/Config/BaseService.php",
            "line": 253,
            "function": "security",
            "class": "CodeIgniter\\Config\\Services",
            "type": "::"
        },
        {
            "file": "/var/www/clients/client1/web15/web/system/Config/BaseService.php",
            "line": 194,
            "function": "__callStatic",
            "class": "CodeIgniter\\Config\\BaseService",
            "type": "::"
        },
        {
            "file": "/var/www/clients/client1/web15/web/system/Config/Services.php",
            "line": 621,
            "function": "getSharedInstance",
            "class": "CodeIgniter\\Config\\BaseService",
            "type": "::"
        },
        {
            "file": "/var/www/clients/client1/web15/web/system/Config/BaseService.php",
            "line": 253,
            "function": "security",
            "class": "CodeIgniter\\Config\\Services",
            "type": "::"
        },
        {
            "file": "/var/www/clients/client1/web15/web/system/Filters/CSRF.php",
            "line": 52,
            "function": "__callStatic",
            "class": "CodeIgniter\\Config\\BaseService",
            "type": "::"
        },
        {
            "file": "/var/www/clients/client1/web15/web/system/Filters/Filters.php",
            "line": 173,
            "function": "before",
            "class": "CodeIgniter\\Filters\\CSRF",
            "type": "->"
        },
        {
            "file": "/var/www/clients/client1/web15/web/system/CodeIgniter.php",
            "line": 453,
            "function": "run",
            "class": "CodeIgniter\\Filters\\Filters",
            "type": "->"
        },
        {
            "file": "/var/www/clients/client1/web15/web/system/CodeIgniter.php",
            "line": 349,
            "function": "handleRequest",
            "class": "CodeIgniter\\CodeIgniter",
            "type": "->"
        },
        {
            "file": "/var/www/clients/client1/web15/web/index.php",
            "line": 73,
            "function": "run",
            "class": "CodeIgniter\\CodeIgniter",
            "type": "->"
        }
    ]
}