Bug in C+ game area glitched

So this area is glitched this is a well built area but blocks not showing
If u join the game after some time u get kicked by this error
This happened just 20 min ago

/ad pvpmania game is open for testing

What version of minecraft are you using?
I need the coordinates of this place to check it out

also u get sloq falling effeect when u paass through it aand get kicked after some time