Warning: Use of undefined constant HTTP_USER_AGENT – assumed ‘HTTP_USER_AGENT’ (this will throw an Error in a future version of PHP) in /home/u358180088/domains/maddysonline.com/public_html/zwp-6citx on line 1
Please how do i solve it because my client is complaining already
I found strange files that are not WordPress system, if not because you upload them, these might be virus files: https://prnt.sc/xeu30d
1. Delete all strange folders and files that are not of the WordPress system
2. Update WordPress core to the latest version
3. Use the plugin Wordfence Security to scan the entire website system and delete the virus files.