Instead of installing rtl8812au-dkms-git
I should have been installed: rtl88xxau-aircrack-dkms-git
$ pamac install rtl88xxau-aircrack-dkms-git
after reboot it solved the problem.
Instead of installing rtl8812au-dkms-git
I should have been installed: rtl88xxau-aircrack-dkms-git
$ pamac install rtl88xxau-aircrack-dkms-git
after reboot it solved the problem.