Put the summary of the bug you're having here
What I expected to happen was...:
Describe what you thought should happen here I could name my pets and house
What actually happened was...:
Describe what happened here it said everything i typed in was a profanity
Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ... renaming something
3. ... types in something as simple as potato
4. ... " Name cannot contain profanity"
This is not a bug with vanilla Minecraft. Go to Mineplex's website and report it there.