Recently WordPress got some security issue. So, You need to update your WP version. It is better if you update your website regularly.
If you want, I can help you on this position with a very small charge only $49 per website. You will receive list of services bellow –
- WordPress Update
- All Plugins Update
- All Themes update
- Full WordPress Backup
- Full Database Backup
- Some others tweak if needed
Overall, I will check your WordPress site security issue. So, If you interested, you can subscribe all of this services with very small charges only for $49 (single website).