Cannot update supervisor - RPi4

hey guys,

i’ve just upgraded from RPi3 to RPi4 and i had to move hass as well. i also switched from a 16gb card to a 32gb one. i did a full backup on pi3, installed hass on the 32gb card, put it in rpi4, updated my static dhcp in router to match the rpi4 and everything is working fine (after snapshot restore) but i cannot update to superevisor 243

20-09-15 09:58:39 INFO (MainThread) [supervisor.supervisor] Update Supervisor to version 243

20-09-15 09:58:39 INFO (SyncWorker_3) [supervisor.docker.interface] Pull image homeassistant/armv7-hassio-supervisor tag 243.

20-09-15 09:59:18 ERROR (SyncWorker_3) [supervisor.docker.interface] Can't install homeassistant/armv7-hassio-supervisor:243 -> 404 Client Error: Not Found ("no such image: homeassistant/armv7-hassio-supervisor:243: No such image: homeassistant/armv7-hassio-supervisor:243").

20-09-15 09:59:18 INFO (SyncWorker_3) [supervisor.docker.interface] This error is often caused by not having enough disk space available. Available space in /data is: 23.7 GiB

20-09-15 09:59:18 ERROR (MainThread) [supervisor.supervisor] Update of Supervisor failed!

any clue? i have enough space, i can install addons and everything else works fine

thanks