Files for each folder have been deleted

First of all, we apologize for any inconvenience, but we are using machine translation.

Hello. I would like to post it for help with the title.

The environment is
Windows10
Avira Free Security

I got the game mod file as a zip.
Then I unzipped the mod file to the game folder.
Then, it seems that the MOD file was detected as a virus.
And the MOD files were deleted along with the game folders.

Launch Avira Free Security and
Security> Quarantine
Even if you look at "The quarantine folder is empty"
Is displayed and there is no file.

Maybe my folder is permanently deleted and can't be restored?

Although it is in Japanese, I have attached a screenshot of the settings.

I'm sorry for my poor English, but I'm looking forward to your reply.