key extraction command failed

[ovibos]

When I try to send a signed mail using Thunderbird 68.12.0 (64-bit) from Debian testing repo and Enigmail 2.1.7 I get:

Error - key extraction command failed
/usr/bin/gpg --charset utf-8 --display-charset utf-8 --no-auto-check-trustdb --batch --no-tty --no-verbose --status-fd 2 -a --export 0xB65EA8F9********
gpg: WARNING: nothing exported

Clawsmail can handle my keys without issue.

$ gpg --list-secret-keys
~/.gnupg/pubring.kbx
--------------------------
sec   rsa4096 2014-07-09 [SC]
... *2 lines deleted here*
ssb   rsa4096 2014-07-09 [E]

sec   rsa4096 2020-08-30 [SC]
... *2 lines deleted here*
ssb   rsa4096 2020-08-30 [E]

Is there an easy answer? If not I would like to uninstall Enigmail. How can I be sure that all settings are cleared?
When version 78 is in the repo I'd start from scratch.
Thank you!

[Patrick Brunschwig]

This looks like you configured a wrong key in your account settings. Go to menu Tools > Acount Settings, select the "OpenPGP Security" tab, and click on the "Select Key". Then select the key that you're want to use.

[ovibos]

You were right. Thank you!