so I have a server running on the Original Bedrock Software and I decided to switch on Pocketmine-MP since i'm interested to those plugins available on that particular software, but the problem is when I reloaded the world backup, it goes back to the previous software like nothing happen, I tried to manually upload the server world and it successfully uploaded, I started the server but it displays as "crashed"
Here are the logs after it crashed:
How to fix this? 