CSRF error while uploadinga file bigger than 5-6 MB

Hi everyone, while uploading a file size of more than 5 or 6 MB, I am getting a CSRF error, Kindly let me know whether it's an issue or if I am doing anything wrong. 
Error - Video to make it more clear.

Learning Codeigniter 

Your video is cutting off the error message, please fix or post the ERROR your getting here so that
we can help you.

What did you Try? What did you Get? What did you Expect?

Joined CodeIgniter Community 2009.  ( Skype: insitfx )

Your video is cutting off the error message, please fix or post the ERROR your getting here so that
we can help you.

Code:

{
  "title": "CodeIgniter\\Security\\Exceptions\\SecurityException",
  "type": "CodeIgniter\\Security\\Exceptions\\SecurityException",
  "code": 403,
  "message": "The action you requested is not allowed.",
  "file": "/home/sdocmanager/public_html/vendor/codeigniter4/framework/system/Security/Security.php",
  "line": 306,
  "trace": [
    {
      "file": "/home/sdocmanager/public_html/vendor/codeigniter4/framework/system/Security/Security.php",
      "line": 306,
      "function": "forDisallowedAction",
      "class": "CodeIgniter\\Security\\Exceptions\\SecurityException",
      "type": "::",
      "args": []
    },
    {
      "file": "/home/sdocmanager/public_html/vendor/codeigniter4/framework/system/Filters/CSRF.php",
      "line": 55,
      "function": "verify",
      "class": "CodeIgniter\\Security\\Security",
      "type": "->",
      "args": [
        {
          "uri": {},
          "config": {
            "baseURL": "http://sdocmanager.com/",
            "indexPage": "",
            "uriProtocol": "REQUEST_URI",
            "defaultLocale": "en",
            "negotiateLocale": false,
            "supportedLocales": [
              "en",
              "es"
            ],
            "appTimezone": "Asia/Kolkata",
            "charset": "UTF-8",
            "forceGlobalSecureRequests": true,
            "sessionDriver": "CodeIgniter\\Session\\Handlers\\FileHandler",
            "sessionCookieName": "ci_session",
            "sessionExpiration": 7200,
            "sessionSavePath": "/home/sdocmanager/public_html/writable/session",
            "sessionMatchIP": false,
            "sessionTimeToUpdate": 300,
            "sessionRegenerateDestroy": false,
            "cookiePrefix": "",
            "cookieDomain": "",
            "cookiePath": "/",
            "cookieSecure": false,
            "cookieHTTPOnly": true,
            "cookieSameSite": "Lax",
            "proxyIPs": "",
            "CSRFTokenName": "csrf_test_name",
            "CSRFHeaderName": "X-CSRF-TOKEN",
            "CSRFCookieName": "csrf_cookie_name",
            "CSRFExpire": 7200,
            "CSRFRegenerate": true,
            "CSRFRedirect": true,
            "CSRFSameSite": "Lax",
            "CSPEnabled": false
          }
        }
      ]
    },
    {
      "file": "/home/sdocmanager/public_html/vendor/codeigniter4/framework/system/Filters/Filters.php",
      "line": 173,
      "function": "before",
      "class": "CodeIgniter\\Filters\\CSRF",
      "type": "->",
      "args": [
        {
          "uri": {},
          "config": {
            "baseURL": "http://sdocmanager.com/",
            "indexPage": "",
            "uriProtocol": "REQUEST_URI",
            "defaultLocale": "en",
            "negotiateLocale": false,
            "supportedLocales": [
              "en",
              "es"
            ],
            "appTimezone": "Asia/Kolkata",
            "charset": "UTF-8",
            "forceGlobalSecureRequests": true,
            "sessionDriver": "CodeIgniter\\Session\\Handlers\\FileHandler",
            "sessionCookieName": "ci_session",
            "sessionExpiration": 7200,
            "sessionSavePath": "/home/sdocmanager/public_html/writable/session",
            "sessionMatchIP": false,
            "sessionTimeToUpdate": 300,
            "sessionRegenerateDestroy": false,
            "cookiePrefix": "",
            "cookieDomain": "",
            "cookiePath": "/",
            "cookieSecure": false,
            "cookieHTTPOnly": true,
            "cookieSameSite": "Lax",
            "proxyIPs": "",
            "CSRFTokenName": "csrf_test_name",
            "CSRFHeaderName": "X-CSRF-TOKEN",
            "CSRFCookieName": "csrf_cookie_name",
            "CSRFExpire": 7200,
            "CSRFRegenerate": true,
            "CSRFRedirect": true,
            "CSRFSameSite": "Lax",
            "CSPEnabled": false
          }
        },
        null
      ]
    },
    {
      "file": "/home/sdocmanager/public_html/vendor/codeigniter4/framework/system/CodeIgniter.php",
      "line": 455,
      "function": "run",
      "class": "CodeIgniter\\Filters\\Filters",
      "type": "->",
      "args": [
        "service-providers/attempt-to-upload-file",
        "before"
      ]
    },
    {
      "file": "/home/sdocmanager/public_html/vendor/codeigniter4/framework/system/CodeIgniter.php",
      "line": 351,
      "function": "handleRequest",
      "class": "CodeIgniter\\CodeIgniter",
      "type": "->",
      "args": [
        null,
        {
          "handler": "file",
          "backupHandler": "dummy",
          "storePath": "/home/sdocmanager/public_html/writable/cache/",
          "cacheQueryString": false,
          "prefix": "",
          "ttl": 60,
          "reservedCharacters": "{}()/\\@:",
          "file": {
            "storePath": "/home/sdocmanager/public_html/writable/cache/",
            "mode": 416
          },
          "memcached": {
            "host": "127.0.0.1",
            "port": 11211,
            "weight": 1,
            "raw": false
          },
          "redis": {
            "host": "127.0.0.1",
            "password": null,
            "port": 6379,
            "timeout": 0,
            "database": 0
          },
          "validHandlers": {
            "dummy": "CodeIgniter\\Cache\\Handlers\\DummyHandler",
            "file": "CodeIgniter\\Cache\\Handlers\\FileHandler",
            "memcached": "CodeIgniter\\Cache\\Handlers\\MemcachedHandler",
            "predis": "CodeIgniter\\Cache\\Handlers\\PredisHandler",
            "redis": "CodeIgniter\\Cache\\Handlers\\RedisHandler",
            "wincache": "CodeIgniter\\Cache\\Handlers\\WincacheHandler"
          }
        },
        false
      ]
    },
    {
      "file": "/home/sdocmanager/public_html/public/index.php",
      "line": 67,
      "function": "run",
      "class": "CodeIgniter\\CodeIgniter",
      "type": "->",
      "args": []
    }
  ]
}

For small file sizes, there's no issue, but for big files, after a few sec, it's showing a token error.

---

Your video is cutting off the error message, please fix or post the ERROR your getting here so that
we can help you.

here's another video link where you can see there's no problem while uploading a small file -> Error File

Learning Codeigniter 

Try to upload files with the opposite order, a big file and a small file.

ci-phpunit-test | CodeIgniter Testing Guide | CodeIgniter 3 to 4 Upgrade Helper

Try to upload files with the opposite order, a big file and a small file.

I have checked the same as per your instruction, but I am facing the same issue, here is the link Demo

Learning Codeigniter 

Now you know the file size does not matter.

ci-phpunit-test | CodeIgniter Testing Guide | CodeIgniter 3 to 4 Upgrade Helper

Now you know the file size does not matter.

I didn't get it , but if you are saying file size doesn't matter then why it's throwing token error for big files only, if I upload small files no error is showing up.  If you want me to post code that being used for file upload , I can do that as well.

Learning Codeigniter 

Now you know the file size does not matter.

I didn't get it , but if you are saying file size doesn't matter then why it's throwing token error for big files only, if I upload small files no error is showing up.  If you want me to post code that being used for file upload , I can do that as well.

Have u check upload allowed size on php.ini ?
Or if u can't change it try adding this on .htaccess

Code:

    php_value post_max_size 64M
    php_value upload_max_filesize 32M

Sorry, I misunderstood your comment.

ci-phpunit-test | CodeIgniter Testing Guide | CodeIgniter 3 to 4 Upgrade Helper

I want to apologize to everyone as I acted so foolishly and post this here, I just checked upload_max_filesize and it was only 5M, Thank you @[email protected] for giving me the hint.

Learning Codeigniter