Error indexmaker

[Toto]

i'm use redhat 9, when i run command:

#indexmaker --output=/var/www/html/mrtg/index.html /etc/mrtg/mrtg.cfg

show error message:

Possible precedence problem on bitwise | operator at
/usr/bin/../lib/mrtg2/BER.pm line 601.
Can't locate package $VERSION for @MRTG_lib::ISA at /usr/bin/indexmaker
line 49
        main::BEGIN() called at /usr/bin/../lib/mrtg2/MRTG_lib.pm line 49
        eval {...} called at /usr/bin/../lib/mrtg2/MRTG_lib.pm line 49

please help me!!!