Don't map minecraft:teleport to the eseentials version of the command
By blocking access to the standard Minecraft /teleport command, you're essentially limiting selectors and teleporting to entities (you can't teleport to entities with the essentials command, even with the UUID)
For example, I was trying to make a command block that would teleport a player to a specific entity that's attached to a fence using lead, but it kept on spitting out "Player not found" errors on the first argument that had the entity UUID
If you unblock minecraft:tp and minecraft:teleport, you should also map tp and teleport to their vanilla implementations.
There were reasons for blocking the commands in the past, but I suppose we could see what happens.