same problem with me and reinstall did not solve problem.
Global symbol "$DB" requires explicit package name at Links/SQL.pm line 32.
Compilation failed in require at setup.cgi line 16.
BEGIN failed--compilation aborted at setup.cgi line 16.
\
Global symbol "$DB" requires explicit package name at Links/SQL.pm line 32.
Compilation failed in require at setup.cgi line 16.
BEGIN failed--compilation aborted at setup.cgi line 16.
\