No secert key

[jerryxuqwq]

Hi!
I have made an openpgp card. I toggled the main key and using keytocard to send key. Some detail information about the card can be seen after gpg --card-status, like this

Reader ...........: Gemalto GemPC Express 00 00
Application ID ...: D2760001240102007413000000010000
Application type .: OpenPGP
Version ..........: 2.0
Manufacturer .....: unknown
Serial number ....: 00000001
Name of cardholder: [not set]
Language prefs ...: [not set]
Salutation .......:
URL of public key : [not set]
Login data .......: [not set]
Signature PIN ....: not forced
Key attributes ...: rsa2048 rsa2048 rsa2048
Max. PIN lengths .: 127 127 127
PIN retry counter : 3 3 3
Signature counter : 0
Signature key ....: [none]
Encryption key....: AXXXXXXXX99
created ....: 2020-05-19 08:23:57
Authentication key: 3XXXXXXXX 0A91
created ....: 2020-05-19 08:25:04
General key info..: sub rsa2048/68F5XXXXXXXX5XXX099 2020-05-19 XXX XX [email protected]
sec rsa2048/5EDXXXXXXXXD9 created: 2020-05-19 expires: never
ssb rsa2048/68FXXXXXXXXF099 created: 2020-05-19 expires: never
ssb rsa2048/A788XXXXXXXXA91 created: 2020-05-19 expires: never

However, when I tied to use the card to sign and decrypt, gpg output

gpg:signing failed: No secret key

Additionally, gpg --secret-key output nothing.