gpg failed to sign the data, failed to write commit object

I have searched the whole universe this error but i could not find any helpful tips. I have created a key using keybase and added my public key to github gpg my gpg --list-secret-keys --keyid-format LONG is this -------------------------------- sec rsa4096/7E8*******60B47B 2021-03-06 [SC] [expires: 2037-03-02] 51FBCD0E******************014D4860B47B uid [ultimate] Fatih uid [ultimate] Fatih ssb rsa4096/15BBF8A123C4AC1B 2021-03-06 [E] [expires: 2037-03-02] my .gitconfig is this [user] signingkey = 7E8*******60B47B email = 73314940+kgnfth@users.noreply.github.com name = kgnfth [commit] gpgsign = true [gpg] program = gpg i added export GPG_TTY=$(tty) to my .zshrc file Everytime i run git commit -m "first commit", i get this error error: gpg failed to sign the data fatal: failed to write commit object I dont see anything wrong with the signing key i also tried changing gpg to gpg2 but the same error appears i am out of idea i need your help Thank you.