"Can't use an undefined value as a symbol reference" in .cgi file

Hi all

I’ve the same issue.

Use of uninitialized value $ENV{“REQUEST_METHOD”} in string eq at ./leti.cgi line 110.
Use of uninitialized value $length in subtraction (-) at ./leti.cgi line 131.
Use of uninitialized value $length in numeric eq (==) at ./leti.cgi line 130.

Upload using binary mode.

Compiled with 2015 R3 FC1 64bits
Runing under Centos 7.0 64Bits

Any idea?

Regards