No members of your clan logged in between 4-3-2015 and 5-23-2015. After 30 days of no members logging in, the clan was auto-disbanded. Clan related structures and protections are not removed or effected when a clan disbands.
Yes, It sounds like it might be time for you to look for another server. If you find it that upsetting that you log in every few months and find your clan gone then it sounds like this may not be the place for you. This is how clans work and how they've always worked.
Also, on a server with a free 1000 Famcoin daily allowance and money that's easy to make with very little work- jobs, raffles, shops - I see determined hard-working players as young as six years old save up the 10k for a clan in just a few days time.
So again, if that feels like an absurd amount of money to you, then yes an easier to play server or one with no economy system might be better for you.
Good luck and happy server hunting.