This is done in LocalCertificateStoreSessionBean.authenticate
method. This could mean that you have not properly generated SuperAdmin certificate, or it is revoked, timed out or is issued by another CA that EJBACA's AdminCA.
Check your superadmin.p12
with:
openssl pkcs12 -nokeys -in ./superadmin.p12 -out superadmin.pem
openssl x509 -in ./superadmin.pem -text