It sounds like you've already tried the troubleshooting steps we'd recommend, so let's get you on up to our Technical specialists. To keep your information secure, please complete our request form at msft.it/6011gLaGW. ^FF
This means that Minecraft couldn't reach the authentication servers or the connection timed out due to a temp service outage or issues with your game/internet connection. Try signing out and back in to your account, and ensure that you're connected to the internet. ^FF
Gotcha. Can you reach out to our support team so they can take a look? To keep your information secure, please complete our request form at msft.it/6018gLt3O so we can quickly and safely assist with your question! ^BT
Let's have our Realms team take a look! To keep your information secure, please complete our request form at msft.it/6017gLYFT so we can quickly and safely assist with your question! ^BT
Hmm, that's strange. Reach out to our Support team so they can look into that for you. To keep your information secure, please complete our request form at msft.it/6017gLYkR so we can quickly and safely assist with your question! ^BT
Please visit our bug report site to see if the problem has already been reported: msft.it/6013gLY3t. You can upvote if the issue hasn't been resolved. If you think you've found a new bug, visit our help site here on how to submit a report! msft.it/6014gLY3Q ^BT
The error that you're encountering does require a more in-depth discussion, so we aren't able to assist over Twitter. If you fill out that form, a technical agent will be in touch as soon as possible to provide additional information. ^LK
Gotcha, we'd be happy to help! To keep your information secure, please complete our request form at msft.it/6015gLTzd. Our technical team will take a look and get back to you as soon as possible. ^LK
Gotcha! We'd recommend removing any resource packs to test if this happens without any packs on. If it is an issue with the packs, you'll want to contact the creators (if it's a pack from us, use msft.it/6019gLTKP). ^LK
Hmm, it looks like those files might be missing or corrupted. Just to confirm, do you have any behavior packs enabled? What platform are you playing on? ^LK
Let's have our Tech team take a look! To keep your information secure, please complete our request form at msft.it/6018gLM4o so we can quickly and safely assist with your question! ^BT
Let's have our Tech team take a look! To keep your information secure, please complete our request form at msft.it/6013gLJjS so we can quickly and safely assist with your question! ^BT
Gotcha! If you haven't already, can you make a ticket with our support team so they can have a look? Please send us an email at msft.it/6012gLJXn and we will assist. Remember to attach your Transaction ID and account name / Gamertag. ^BT
Hmm. Try reaching out to our Team so they can have a look. To keep your information secure, please complete our request form at msft.it/6019gLG6R so we can quickly and safely assist with your question! ^BT