psa47

You have to update the WordPress version. for that follow the following steps

Please take the backup of your website folder from files manager first before proceeding to the following steps

1. except for wp-content, .htaccess, and wp-config, delete all files and folders
2. download lates WordPress version
3. extract and open the downloaded WordPress. except for wp-content, copy all the files and folders
4. paste the copied files and folders in you website’s folder.
5. after that open wp-admin on the browser. instead of login page, they will ask to update the WordPress version. update it. then login to your wp-admin

Hope that’ll help