Hi @Douradinho, did you add a dracut module for hibernation?
First create a config file in /etc/dracut.conf.d/:
sudo micro /etc/dracut.conf.d/resume.conf
Paste in this line to add the module:
add_dracutmodules+=" resume "
Be sure to include the spaces between the quotation marks, before and after "resume".
Ctrl+Q to exit (be sure to save), then rebuild the initramfs:
sudo dracut-rebuild