Bug Report

Type /ver NametagEdit and post the output.
NametagEdit version 4.1.7
Authors: sgtcaze and Cory

What version of Bukkit/Spigot/PaperSpigot are you using? Type /ver
This server is running Paper version git-TacoSpigot-"1a0d11cc"(MC: 1.12.2) (Implementing API version 1.12.2-R0.1-SNAPSHOT)

What plugins are you using? Type /plugins

ActionBarAPI,
AdvancedAchievements,
asCMD,
AttackRangeUp3,
AuthMe,
AutoDoors,
AutoMessage,
BedwarsRel, BeeTeleport, BKCommonLib,
CalendarEvents,
ChestCommands,
CoreProtect,
CrazyAuctions,
DivineItemsRPG,
Essentials, EssentialsAntiBuild, EssentialsChat, EssentialsGeoIP, EssentialsProtect, EssentialsSpawn,
ExploitPatcher,
FarmProtect,
FastLogin,
FurnitureLib,
GUIPlus,
HolographicDisplays,
iChat,
ImageOnMap,
ItemTags,
KillOP,
LaggRemover,
LockettePro,
MaintenanceTime,
MCLib,
MultiWorld,
MVdWPlaceholderAPI,
MyCommand,
MysqlEcoBridge,
MythicMobs,
NametagEdit,
OreReplacerPlugin,
PermissionsEx,
PhatLoots,
PlaceholderAPI,
PrefixInv,
ProtectionLib,
ProtocolLib,
qiandao,
Quests,
Residence,
RPGItems,
SignLink,
Skills,
Stp,
SuddenDeath,
Tab,
taiyuanle,
TigerSigns,
TNTRun,
Train_Carts,
TreysCommandBlocker,
Vault,
WorldBorder,
WorldEdit,
WorldGuard

Please explain your issue. How do you trigger it?

The server console had been reported this error since I installed MVdWPlaceholderAPI, but the plugin still works at that point. Yesterday I changed the configure file of permissionEX plugins\PermissionsEx\config.yml and change the value of permission.backend from file to sql. After that I add some prefix by /pex command. But when I try to use /nte to change the nametag. It won't work. The nametag will display the player's original playername.

Are there any errors in the console? Please use: https://pastebin.com

https://pastebin.com/HCXTdpPE

The plugin starts to work again after deleted MVdWPlaceholderAPI

Are you using the latest Jenkins build? I thought I fixed this issue in #215