What is "Sending Chunk 4/6 to Player"

Hello, my servers been lagging lots recently and im trying to find the problem, just out of curiocity does anyone know what these messages are in console? it spams them every now and then and i got no idea what it is:

Sending Chunk 2/6 to Player [1][Ventz - Bare Fresh Creps]
Sending Chunk 3/6 to Player [1][Ventz - Bare Fresh Creps]
Sending Chunk 4/6 to Player [1][Ventz - Bare Fresh Creps]
Sending Chunk 5/6 to Player [1][Ventz - Bare Fresh Creps]
Sending Chunk 6/6 to Player [1][Ventz - Bare Fresh Creps]

Same question. I guess it’s ARCBank, do you have it ?

Yes, i have ARC Bank and i have puchased it on ScriptFodder

Well i didn’t see that before so i guess it’s since the last (automatic) update
May you ask on Scriptfodder as a public question ?