Looks like it failed to parse your cert files. Can you make sure they exist and are in the form of
"ApplePushCertPublic": "./config/publickey.cer",
"ApplePushCertPrivate": "./config/privatekey.pem",
Looks like it failed to parse your cert files. Can you make sure they exist and are in the form of
"ApplePushCertPublic": "./config/publickey.cer",
"ApplePushCertPrivate": "./config/privatekey.pem",