Out of my Free Company and can't use this feature anymore

[yahavbr]

I don't see a FC with that name, it's possibly just the tag, which isn't really searchable.

But at a guess, it just looks like you were kicked, a lot of FCs do that if you don't log in for a while as there are some limits on the number of people you can have joined at once. In 99,9% of cases it's not a personal thing.

You can try to talk to the people in it and see if you can be invited back in.

Thanks and sorry for late reply, didn't get notification for the answer.
Turns out the company was disbanded, but still, the message "This feature isn't currently available" is misleading, would be better as "You are currently not part of a free company". Anyway I've joined other company since then, all good now.