Blockland was fun while it lasted, but unfortunately, Badspot hated the community and lost interest in providing for it (can you really even blame him?). Play something else.
Play Brickadia. It always has at least one exciting 24/7 themed freebuild up, it's player numbers are similar to blockland at worst and WAY more at best, and it has a bright future ahead of it (rather than a dead one). Also it runs better, looks better, and feels better in every way. Features that are currently missing are already being worked on. (Bright future) The only downside is the development team is way too small to make fast progress, so you kinda gotta wait for it to be everything Blockland is.
If you don't like Brickadia then why don't you join some other creative community? Dreams for the PS4 is an amazing tool. I know it isn't like LEGOs by default or whatever but if your thing is creating cool stuff for a cool community then that works. Minecraft is still going strong. Haven't played it in years but every time I get recommended a video about it I'm amazed at how much stuff has been added. Hell, Roblox is far superior to Blockland at this point. Let go of the past, it is over. You can have fond memories of a thing without continuing to do that thing for the rest of your life.
Otherwise, just keep playing Blockland. If you create something interesting and worth playing, then post it on the forums and I'm sure at least someone will join it.