WeBWorK error

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Wed Jun 06 11:43:37 2012
Warning messages

Error messages

    Undefined subroutine &WeBWorK::Authen::croak called at /opt/webwork/webwork2/lib/WeBWorK/Authen.pm line 332.

Call stack

The information below can help locate the source of the problem.

    in WeBWorK::Authen::get_credentials called at line 281 of /opt/webwork/webwork2/lib/WeBWorK/Authen.pm
    in WeBWorK::Authen::do_verify called at line 212 of /opt/webwork/webwork2/lib/WeBWorK/Authen.pm
    in WeBWorK::Authen::verify called at line 308 of /opt/webwork/webwork2/lib/WeBWorK.pm