Minecraft Server Load Problem

I receive a series of endless errors when I try to run my server. These errors prevent me from loading & playing the world. I can open my world when I move the world files to the Minecraft local app folder and play it as single player. 

I first noticed the error today (9/16). I played the server last week (9/10) without any problems. I'm not sure if there were any Minecraft updates during that time frame. I downloaded a new server.jar file from the Minecraft website, but this did not resolve the problem.

The first error is:

java.lang.ArrayIndexOutOfBoundsException: -3014775java.lang.ArrayIndexOutOfBoundsException: -3014775 at java.util.ArrayList.elementData(Unknown Source) ~[?:1.8.0_181]

This is followed by endless errors:

java.lang.ArrayIndexOutOfBoundsException: null
[18:18:53] [WorldGen-Scheduler-1/ERROR]: Couldn't load protochunk