Error Stack Trace: https://pastebin.ubuntu.com/p/HSb3Gfg236/

Affected line: https://github.com/WolfyScript/WolfyUtilities/blob/8aeb507a2993cb84665cde0ce7610fd1d42cf618/core/src/main/java/me/wolfyscript/utilities/util/world/WorldCustomItemStore.java#L78

The location that is provided isn't actually always null as intended.
That only seems to happens when the previous location, that a block was saved to, no longer exists due to a renamed/deleted world etc.
Make sure it is never null to prevent this error.