#6 Execution problem on method prepare

[Anonymous]

netsaint@tst03cn:~/sbin/nsa$ ./index.cgi
Use of uninitialized value in length at netsaint-lib.pl
line 887.
Use of uninitialized value in length at netsaint-lib.pl
line 891.
Use of uninitialized value in numeric ne (!=) at
netsaint-lib.pl line 37.
Use of uninitialized value in concatenation (.) or
string at netsaint-lib.pl line 906.
Use of uninitialized value in concatenation (.) or
string at netsaint-lib.pl line 906.
Can't call method "prepare" on an undefined value at
Myperl.pm line 116.
Compilation failed in require at ./index.cgi line 3.