"An unexptected error has occured" :(

[ufuk_atalay]

Hello friends, we made a few changes to assign doi to articles in our ojs board journal. We created a doi record and assigned doi numbers to two articles manually. However, when we go to the submit and doi tabs later, we get the following error. We cannot access archived and current posts either. I am also sending the error records as an attachment. Thank you if anyone can help.
We are using Ojs 3.4.0.6.
Screenshots:

[asmecher]

Hi @ufuk_atalay,

What is the files_dir setting in your config.inc.php configuration file?

Regards,
Alec Smecher
Public Knowledge Project Team

[ufuk_atalay]

Many suspicious files found in public_html. Possible malware infection. Php.index file like this.

[asmecher]

Hi @ufuk_atalay,

Did you see my question above?

Regards,
Alec Smecher
Public Knowledge Project Team

[ufuk_atalay]

!

[asmecher]

Hi @ufuk_atalay,

This is unsafe, unless you have protected the contents of that directory from being accessed directly via a .htaccess file or equivalent. The files_dir should be outside the web root, as noted in the configuration file, on the installation form, and elsewhere.

Regards,
Alec Smecher
Public Knowledge Project Team

[ufuk_atalay]

Thank you for your interest and time. If I delete this file and upload the php_config file from the same version of Ojs sitebdeb, can I solve the problem without changing my settings? I don’t know exactly what to do.