My site was being Hacked

See FAQ: My site was hacked ? WordPress Codex and How to completely clean your hacked wordpress installation and How to find a backdoor in a hacked WordPress and Hardening WordPress ? WordPress Codex.

Thanks you, I think I uploaded a clean version… Don’t you have an efficient way to detect if they attack my database?

Thanks.

Try this:
https://www.ads-software.com/extend/plugins/exploit-scanner/

It’s giving me this:

Searching your filesystem and database for possible exploit code

Warning: array_slice() expects parameter 1 to be array, boolean given in /home/myuser/mysite.com/wp-content/plugins/exploit-scanner/exploit-scanner.php on line 499

Warning: Invalid argument supplied for foreach() in /home/myuser/mysite.com/wp-content/plugins/exploit-scanner/exploit-scanner.php on line 521
Complete

Do you know why or how to fix it?

Thanks.

Hm, never tried that plugin, but it sounds like an error of the plugin. That’s going to be a manual check. Read that ‘how to completely clean up your hacked site’ link of Songdogtech.