This is a common error that happens to a lot of people.
This tutorial will help you fix Blockland when it has been crashing. PLEASE NOTE: These instructions only solve the following problems:
- Immediate crash upon loading Blockland (Error message will pop up saying something about SQLite)
- Crash at loading datablocks when you start or join a server
To fix these crashes, you will have to delete a file in your Blockland folder called a cache.db.
Step #1 - Locate your Blockland folder.
Step #2 - Find the cache.db file.
Step #3 - Right-click the file and press Delete.

The list below will be similar to what shows up on your computer. It's OK if an option doesn't show up.

The file should not be in the Blockland folder anymore. If it is, try again.
Step #4 - Start up Blockland. It should be downloading 900-1100 files now.

NOTE: This picture probably won't show the same number of files being downloaded as your own game.
Step #5 - Test the game to see if it works. Quit out of the game and rejoin. If it doesn't crash, then you're all set! If it was crashing while loading datablocks, then join a server.
If the game is working, congratulations! Blockland is fixed!
If it didn't work, try these steps again. If Blockland refuses to work, then it could be a different problem you are having. Try making a help topic if all else fails.
Thank you for reading!