I started using 1.12.2 to player on a number of servers, but a couple days later[yesterday], the servers and their IPs corrupted with the Error Message shown in the "Environment" box above.

I searched and saw that a number of players had the same issues and they all recorded the issue and uploaded it to Youtube.

1.12.2 needs to be fixed because now im afraid to use 1.12 in General, which I like 1.12 better than the past versions because its "Every builders heaven". I would like it to be fixed ASAP so I can enjoy this heaven without worrying to downgrade to 1.10.2 and re add all of my favorite servers, like im having to do now because 1.10.2 is the most functional version with no lag at all.