Gowdham Subramaniam

You solve it if you have backend access like cPanel access or FTP Access.

1. Take backup of your core files as listed below

1. .htacess
2. wp-config.php
3. wp-contents folder

2. Download all the files to your local system or under a folder.
3. Upload and extract the latest version of wordpress files & replace the core files that you took backup.
4. Everything should be fine I guess.