Why are variables removed?

[Mani]

When I restart my server is showing me my console this:

[13:42:34 ERROR]: #!#! ===!!!=== Skript variable load error ===!!!===
[13:42:34 ERROR]: #!#! Unable to load (all) variables:
[13:42:34 ERROR]: #!#! 3 variables could not be loaded!
[13:42:34 ERROR]: #!#! Affected variables: death.location.nebelmane, spawn.cb, warp.spawn

The worlds where the variables have been removed are not from Minecraft, but can only be accessed with Multiverse.

 

[TPGamesNL]

When I restart my server is showing me my console this:

[13:42:34 ERROR]: #!#! ===!!!=== Skript variable load error ===!!!===
[13:42:34 ERROR]: #!#! Unable to load (all) variables:
[13:42:34 ERROR]: #!#! 3 variables could not be loaded!
[13:42:34 ERROR]: #!#! Affected variables: death.location.nebelmane, spawn.cb, warp.spawn

The worlds where the variables have been removed are not from Minecraft, but can only be accessed with Multiverse.

Maybe the world(s) from those locations weren't loaded yet (not sure if this can cause that issue)