1. Hello, I using EssentialsX and when I die my inventory is keeping, I tried with OP and without OP, but same result. Permission "essentials.keepinv false" don't working, I using PermissionsEx. Please Help!

2. Problem number two, teleport waiting tme don't working only for me! With OP or no I haven't got any waiting time, but my friends on same server have!

(I'm Owner)

All my plugins: WorldEdit, OpenInv, LogBlock, PlaceholderAPI, WorldGuard, Clans, ProtocolLib, BloodEffects, SkinsRestorer, UberEnchant, PermissionsEx, TabListPro, TreeGravity, GSit, Vault, DailyRewards, ID-Library, MassiveCore, AdvancedRegionMarket, Essentials, GChestShop, GCore, Admin-GUI, Prison, Matrix, Jobs, KillRewards, HolographicDisplays, ActionHealth, Marriage, Vote, EssentialsXMPP, GParticles, Shopkeepers, EssentialsProtect, EssentialsGeoIP, EssentialsChat, EssentialsAntiBuild, EssentialsSpawn

Thanks!

You need to make sure you're negating the permissions correctly with PermissionsEx. As per the PEX wiki, your negated permissions need to be declared before any wildcards like essentials.* or *.

Your first problem will be solved be correctly negating essentials.keepinv, and your second will be solved by correctly negating essentials.teleport.timer.bypass.

We also recommend switching to LuckPerms, as PermissionsEx is no longer maintained and may cause compatibility issues with EssentialsX.

Admin:
default: false
prefix: '&8[&cAdmin&8]&7'
permissions:
- essentials.teleport.timer.bypass
- essentials.keepinv
- '*'

Is this correct? It's not working!

As triagonal mentioned earlier, we don't actually support PermissionsEx currently (because it has numerous issues) so we cannot tell you whether that is correct or not. For help with proper usage of the plugin, we recommend using the Discord server to ask your questions. Perhaps other server owners may know the answer.