Filesystem filter driver is not loaded (Fedora 26)

I installed Comodo Antivir in my Fedora 26 workstation, I accepted the licence, ran /opt/COMODO/ and restarted /etc/init.d/cmdavd but Comodo is still telling me that “Filesystem filter driver is not loaded”.
My kernel version is 4.11 with the latest version of everything, including GCC.
I downloaded the latest rpm version from your website.
Diagnostic shows that there are issues with redirts.ko and avtlt.ko, if I recall correctly.
Please check the report here:!uVFUSJRC!m9Q0gEjM0IyEHVJ0uJnCaVJJ1o9CAWgcDC8dUnDJDAE

(I had to upload it to Mega, 'cause it seems that Comodo makes reports in .xml, but your forum doesn’t allow me to attach files in such a format. Rotfl)

I also tried the procedure described in this post but it doesn’t work.

Thanks in advance.