Error: Can't use string ("PIN") as a HASH ref while "strict refs"

[tkriener]

During the enrollment of a openssl-Keystore I get the error "Can't use string ("PIN") as a HASH ref while "strict refs" " inside of importP12

This is the debug:

2016-11-25 10:57:45 : [debug] [21167] [CertNanny::Keystore::_sendRequest(2019)] Install cert in initial enrollment, first build p12 to import into the final location.
2016-11-25 10:57:45 : [debug] [21167] [CertNanny::Keystore::OpenSSL::createPKCS12(1028)] Start CertNanny::Keystore::OpenSSL::createPKCS12 create pkcs12 file
2016-11-25 10:57:45 : [debug] [21167] [CertNanny::Keystore::OpenSSL::createPKCS12(1064)] Certformat: PEM
2016-11-25 10:57:45 : [debug] [21167] [CertNanny::Keystore::OpenSSL::createPKCS12(1099)] passout set
2016-11-25 10:57:45 : [debug] [21167] [CertNanny::Keystore::OpenSSL::createPKCS12(1121)] Adding CA certificate 'ActiveDirectory-CA' in /var/CertNanny/tmp/cbf1G58Z
2016-11-25 10:57:45 : [debug] [21167] [CertNanny::Keystore::OpenSSL::createPKCS12(1121)] Adding CA certificate 'ActiveDirectory-CA' in /var/CertNanny/tmp/cbf1G58Z
2016-11-25 10:57:45 : [debug] [21167] [CertNanny::Util::runCommand(112)] Execute: "/usr/bin/openssl" pkcs12 -export -out "/var/CertNanny/state/openssl-import.p12" -password env:EXPORTPIN -in "/var/CertNanny/state/openssl-cert.pem" -inkey "/var/CertNanny/state/openssl-key.pem" -name "cert1" -certfile "/var/CertNanny/tmp/cbf1G58Z" -caname "ActiveDirectory-CA" -caname "ActiveDirectory-CA"
2016-11-25 10:57:45 : [debug] [21167] [CertNanny::Keystore::OpenSSL::createPKCS12(1148)] End CertNanny::Keystore::OpenSSL::createPKCS12 create pkcs12 file
2016-11-25 10:57:45 : [debug] [21167] [CertNanny::Keystore::_sendRequest(2057)] Created importp12 file: openssl-import.p12
2016-11-25 10:57:45 : [debug] [21167] [CertNanny::Keystore::_sendRequest(2059)] Target keystore: OpenSSL
2016-11-25 10:57:45 : [debug] [21167] [CertNanny::Keystore::OpenSSL::importP12(1183)] Start CertNanny::Keystore::OpenSSL::importP12 import pkcs12 file
Could not execute OpenSSL keystore importP12 function. Aborted. Problem calling importP12 Can't use string ("PIN") as a HASH ref while "strict refs" in use at /opt/CertNanny/bin/../lib/perl/CertNanny/Keystore/OpenSSL.pm line 1188.
 at /opt/CertNanny/bin/../lib/perl/CertNanny.pm line 408
 at /opt/CertNanny/bin/../lib/perl/CertNanny.pm line 408

Perl is 5.14 on debian 7.11

Can this be a configuration issue?

Regards,
Thomas