Add the following logging section in your named.conf, and
restart bind.

Then check that logs are being created in /etc/namedb/log:


options {
    ...
};

logging {
        // Channels

        channel transfers {
            file "log/transfers" versions 3 size 10M;
            print-time yes;
        };
        channel notify {
            file "log/notify" versions 3 size 10M;
            print-time yes;
        };
        channel dnssec {
            file "log/dnssec" versions 3 size 10M;
            print-time yes;
        };
        channel query {
            file "log/query" versions 5 size 10M;
            print-time yes;
        };
        channel general {
            file "log/general" versions 3 size 10M;
            print-time yes;
        };

        // Categories

        category xfer-out { transfers; };
        category xfer-in { transfers; };
        category notify { notify; };

        category lame-servers { general; };
        category config { general; };
        category default { general; };
        category security{ general; };

        // category queries { query };

};

zone "..." {
    ...
};