제가 캔 블록도 안뜨고

가끔 블록을 부쉈는데 안부서지고 그대로있기도하고ㅠㅠㅠㅠ

그래서 game output 들어가니까

[Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 15929ms behind, skipping 318 tick(s)

[Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 21269ms behind, skipping 425 tick(s)

이런 숫자만 바뀐 문구가 여러개 떠있더라구요ㅠㅠㅠㅠ대체 뭣때문에 이러는거죠ㅠㅠㅠㅠ