Bug Report

Type /ver NametagEdit and post the output.
NametagEdit version 4.4.10 | Authors: sgtcaze and Cory

What version of Bukkit/Spigot/PaperSpigot are you using? Type /ver
git-Spigot-db6de12-18fbb24 (MC: 1.8.8)

What plugins are you using? Type /plugins
ColoredSigns, JoinCommands, PlaceholderAPI, CommandAliases, NametagEdit, CaixasMisteriosas, ConsoleSpamFix, SkinsRestorer, DisableRespawnScreen, MaxBans, CustomDrops, reLuz, TintaDupe, PlayerReport, F_Maquinas, AntiJoinBot, ViaVersion, WorldEdit, TimTheEnchanter, NoRain, OpeNLogin, ClearLag, DisableJoinMessage, ArmorEquipEvent, F_Fragmentos, BelovedBlocks, ItemEdit, ProtocolLib, ChestLockGui, NoCheatPlus, MovingDevApi, AutoPickup, PermissionsEx, PlugReloader, ServerListPlus, Vault, HeroVender, BankCheque, CrashFix, Rankup, SimpleRename, TreysCommandBlocker, PlotSquared, VipZero, RewardPRO, Legendchat, ChatItem, ChestCommands, MessageFilter, Essentials, HeadDatabase, Multiverse-Core, SimpleClans, Citizens, EssentialsKitManager, CrazyAuctions, AncientGates, MineResetLite, HolographicDisplays, HeroMagnata, CommandNPC, EssentialsSpawn, TitleManager, CommandSigns, ChestShop, ArmorStandTools, WorldGuard, UltimateStacker, Shopkeepers.

Please explain your issue. How do you trigger it?
I'm just trying to use number groups on the config file but it seems impossible? Like the group "owner"'s prefix and suffix works fine but the group "1" or any number doesn't seem to work because the suffix or preffix won't work.

Are there any errors in the console? Please use: https://pastebin.com
No errors on console.