GPG can't decrypt: no pinentry program

I can't decrypt my passwords with pass neither with gpg directly.

gpg: encrypted with rsa4096 key, ID id, created creation_date
      "name "
      gpg: public key decryption failed: No pinentry
      gpg: decryption failed: No pinentry

It does not show a prompt dialog asking for the master password. It says "no pinentry" but the program is installed:

$ ls /usr/bin/pinentry*
/usr/bin/pinentry
/usr/bin/pinentry-curses
/usr/bin/pinentry-emacs
/usr/bin/pinentry-gnome3
/usr/bin/pinentry-gtk-2
/usr/bin/pinentry-qt
/usr/bin/pinentry-tty

Please, I need help asap because I can't login into nothing without my passwords, which are all encrypted with GPG.