When installation i've got this error message "Could not prepare boot variable : no such file or directory"

i’ve got that error message but i dont know what happen

my laptop spec is celeron n3350 2 gb of ram intel hd 500
first i think uefi partition storage is not enough so i increase it but i still got this message
i think the os is fully installed but the uefi boot manager not installed properly maybe.

So here’s the installation log

[2021-12-30 12:09:06-08:00]:fydeos_dualboot: Un-mounting the partition:/dev/sda6
[2021-12-30 12:09:06-08:00]:fydeos_dualboot: Formatting partition:/dev/sda6...
[2021-12-30 12:09:12-08:00]:fydeos_dualboot: Modifying multi-boot partition label...
[2021-12-30 12:09:12-08:00]:fydeos_dualboot: Sync label, label: FYDEOS-DUAL-BOOT, dev: /dev/sda6
[2021-12-30 12:09:15-08:00]:fydeos_dualboot: Installing new kernel...
[2021-12-30 12:09:16-08:00]:fydeos_dualboot: Installing initramfs images...
[2021-12-30 12:09:16-08:00]:fydeos_dualboot: Done.
[2021-12-30 12:09:16-08:00]:fydeos_dualboot: Creating FydeOS multi-boot image...
[2021-12-30 12:09:18-08:00]:fydeos_dualboot: Allocate :/tmp/fydeos_dualboot_ubYXG/fydeos/fydeos_dual_boot.img
[2021-12-30 12:09:18-08:00]:fydeos_dualboot: Installing FydeOS image...
[2021-12-30 13:03:22-08:00]:fydeos_dualboot: Recycling system resources...
[2021-12-30 13:03:22-08:00]:fydeos_dualboot: Done.
[2021-12-30 13:03:25-08:00]:fydeos_dualboot: Installing FydeOS bootloader...
[2021-12-30 13:03:25-08:00]:fydeos_dualboot: Extra commandline flags: vtit=/sbin/init audit=0 dm_verity.max_bios=-1 dm_verity.dev_wait=0 "DM=1 none 1,0 5529600 verity payload=ROOT_DEV hashtree=HASH_DEV hashstart=5529600 alg=sha256 salt=040be196ad297eee6006da6ff1be1ad9e18380b69e895035ff0023aa840ecec8" ventoyos=fydeos
[2021-12-30 13:03:25-08:00]:fydeos_dualboot: Done.
[2021-12-30 13:03:26-08:00]:fydeos_dualboot: Extracting rEFInd to /tmp/...
[2021-12-30 13:03:26-08:00]:fydeos_dualboot: Installing rEFInd...
[2021-12-30 13:03:26-08:00]:fydeos_dualboot: Copying tools...
[2021-12-30 13:03:26-08:00]:fydeos_dualboot: Copying drivers...
[2021-12-30 13:03:26-08:00]:fydeos_dualboot: Creating new boot entry.