I try to get on Blockland, but every time the same thing happens. The bar on top (using mac it's the Finder) says Blockland, so it's open, but the window isn't there.
Before that happened I did this:
1. Downloaded v14
2. Transferred every add-on that i wanted transferred (Except default add-ons) from v13 to v14
3. Threw out v13
Also another exception is that I kept the v14 on the Desktop and not in the dock, unlike the other versions i had.