Multiworld plugin crash issue

[Sarthak5276]

Describe the bug A clear and concise description of what the bug is.

To Reproduce Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior I mined sand and the server crashed and whenever I try to join it crashes and in console it says it happens because of multiworld type error

Screenshots If applicable, add screenshots to help explain your problem.

System information (please complete the following information):

• OS: android
• PHP Version: 5.16.0
• MultiWorld Version: [e.g. dev#142, Release 1.7.0-beta2