If installation was smooth, you should be able to login with default credentials
```
Default Username: [email protected]
Default Password: 12345678
```

If you can't login with above after fresh install, I don't thinking of such situation, might need to check db server. If db server running, it can be due to mod_security or somethings. You can check with your host/server admin.

Thanks for your response,

I have already talked with my hosting service provider. They told me that all the server requirements are available and also the extensions are enabled.
Please take a look my server detail:
Apache: 2.4,
cPanel: 11.78,
cURL: 7.37.1 and 7.38.0,
HTTP/2: supported,
Imagick module: 3.1.2 (3.4.3 for 'native' PHP version),
IonCube PHP Loader: 10.2.0,
Mod_Rewrite: enabled,
Mod_Security: enabled, more details can be found ,
MariaDB: 10.1.37,
Mysqli Support: enabled,
PHP: 5.2 - 5.6, 7.0-7.3, more details can be found ,
PHP modules: full list of PHP modules and extensions can be found (note: all listed extensions in documentation is also available in this hosting package).

When I trying to login, showing this warning in javascript console:
Mixed Content: The page at 'https://arfabricbd.com/admin/auth/login' was loaded over HTTPS, but requested an insecure image 'http://arfabricbd.com/themes/default/admin/assets/images/login-bgs/2.jpg'. This content should also be served over HTTPS.
is this the reason for why I am unable to login?

It will help me a lot if there have any suggestion.
Thanks in advance.

Please check your `base_url` in `app/config/config.php` it should be `https`