Hello i get this error
https://pastebin.com/2Q6vU54Y
the plugin is
https://www.spigotmc.org/resources/zombies-minigame-1-8-1-14-4.46148/
if i try to use protocolsupport i don't get anymore this error
so the problem is by viaversion, viarewind-legacy-support-1.3.2#4, viarewind-all-1.4.6#25 or viabackwards-all-3.0.0#180?

why -_-