World is having trouble loading

Ever since a few versions before 1.13 pre-releases I haven't been able to load into a world very well.

In  1.13-pre6, it started working again. However, it takes a very long time to load and the log spews out errors. (Chunks with no level data?)

This is getting annoying. I have attached a log, the world, and a forced crash. Please help!

Versions older than 1.13-pre6 would just say "Preparing spawn area: 0%" over and over again in the log.

WORLD FILE:  https://drive.google.com/drive/folders/1EWjVyXh5kMlggTPYWMM90zL1bX9s3qdA?usp=sharing