We recently removed older firmwares as they're just a waste of space since almost nobody is using these older devices (some of which are only capable of 802.11b). Your device probably falls into that category and is now missing firmware.
We're willing to consider adding the firmware file(s) back when users work with us and help us identify the required firmware, but I guess you're not willing so enjoy OpenELEC and see you again in a few months.
For obscure hardware we can also tell you how to install the firmware yourself, which would get you up and running with LibreELEC in a few minutes, but unless you tell us the required firmware by providing "dmesg" details we can't help you.
I am willing to work with you, just reply on this forum.
