I had the same issue.
this workaround mentioned to run esets_update after deleting files, but /opt/eset/esets/sbin/esets_update does not exist on my ESET Desktop installation.
I had to reinstall ESET Desktop following this instruction of ESET JP (Canon).
https://eset-support.canon-its.jp/faq/show/18010?site_domain=business