My server starts for a bit then stops this is the log:
[16:36:08] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 2340ms behind, skipping 46 tick(s)
[16:36:35] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 9832ms behind, skipping 196 tick(s)
[16:37:02] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 15267ms behind, skipping 305 tick(s)
[16:37:06] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 3232ms behind, skipping 64 tick(s)
[16:37:08] [Server thread/INFO]: Saving...
[16:37:09] [Server thread/INFO]: Saved the world
[16:37:23] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 3821ms behind, skipping 76 tick(s)
[16:38:07] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 21758ms behind, skipping 435 tick(s)
[16:38:11] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 3805ms behind, skipping 76 tick(s)
[16:38:31] [User Authenticator #3/INFO]: UUID of player 1RUBYWOLF1 is f1cbd86d-4f30-4814-8533-c0667c6e2995
[16:38:31] [Server thread/INFO]: 1RUBYWOLF1[/176.79.139.87:62349] logged in with entity id 8755 at (-243.93310972481743, 62.02465031347332, 226.32758062265228)
[16:38:31] [Server thread/INFO]: 1RUBYWOLF1 joined the game
[16:38:37] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 14587ms behind, skipping 291 tick(s)
[16:38:43] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 3388ms behind, skipping 67 tick(s)
[16:39:12] [Server thread/INFO]: Octochef has just earned the achievement [Cow Tipper]
[16:39:18] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 4963ms behind, skipping 99 tick(s)
[16:39:55] [Server thread/INFO]: 1RUBYWOLF1 has just earned the achievement [Taking Inventory]
[16:40:42] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 57135ms behind, skipping 1142 tick(s)
[16:40:47] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 5195ms behind, skipping 103 tick(s)
[16:41:24] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 22348ms behind, skipping 446 tick(s)
[16:41:27] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 3693ms behind, skipping 73 tick(s)
[16:41:31] [Server thread/INFO]: 1RUBYWOLF1 was slain by Raccoon
[16:41:46] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 4144ms behind, skipping 82 tick(s)
[16:41:49] [Server thread/INFO]: [Octochef: Teleported Octochef to 1RUBYWOLF1]
[16:42:02] [Server thread/WARN]: Can't keep up! Did the system time change, or is the server overloaded? Running 2377ms behind, skipping 47 tick(s)
[16:42:08] [Server thread/INFO]: Successfully set the idle timeout to 10 minutes.
[16:42:08] [Server thread/INFO]: Saving...
[16:42:09] [Server thread/INFO]: Saved the world