When you tap the server reset button, type world name and world seed, and try to create the reset server, it doesn't work. (Resetting from creative to survival)

What I expected to happen was
The server would reset and would be in survival game mode

What actually happened was...:
After tapping reset server, a message appeared, saying, "Server full. Cannot join"

Steps to Reproduce:
1.Go to a creative realms server that you own
2.Go to reset realm
3. Put in world name and world seed
4. reset server
5. The message will then appear