As said in the summary, the phrase that appears every time you enter a world is redundant.
As I can see, this is a phrase composed of multiple strings, you can rename the "Open chat" button to just "Chat" or "Chat button" to avoid this redundance.
Is worth to say, as this problem is present in the base language "English (US)" it also affects the majority of languages in the current version of the game.
Thank you for your report!
We're tracking this issue in MCPE-102414, so this ticket is being resolved and linked as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki