Arch linux: Failed to mount /boot

when I try to start uo my system I get this error:

[Failed] Failed to mount /boot
See 'systemctl status boot.mount' for details
[DEPEND] Dependency filed for Local File System

then some more logs and

You are in emergency mode. After logging in, type "journalctl -xb" to view
system logs, "systemctl reboot" to reboot, or "exit" to continue bootup.

Cannot open access to console, the root account is locked.
See sulogin(8) man page for more details.

Press Enter to contienue

What can i do to fix it ? I am not able to log in to mu system but I am able to run run arch-chroot from live USB. Edit: this in systemctl status boot.mount

mount: /boot: unknown file system 'vfat'