Server stop responding

My English is very bad, sorry ~~"

Please help me, i got this short error but i don’t really know why, if you need anything just tell me, i’ll provide everything you need.

[19:19:37 ERROR]: — DO NOT REPORT THIS TO PAPER - THIS IS NOT A BUG OR A CRASH —
[19:19:37 ERROR]: The server has not responded for 12 seconds! Creating thread dump
[19:19:37 ERROR]: ------------------------------
[19:19:37 ERROR]: Server thread dump (Look for plugins here before reporting to Paper!):
[19:19:37 ERROR]: ------------------------------
[19:19:37 ERROR]: Current Thread: Server thread
[19:19:37 ERROR]: PID: 29 | Suspended: false | Native: false | State: TIMED_WAITING
[19:19:37 ERROR]: Stack:
[19:19:37 ERROR]: java.lang.Thread.sleep(Native Method)
[19:19:37 ERROR]: net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:644)
[19:19:37 ERROR]: java.lang.Thread.run(Unknown Source)
[19:19:37 ERROR]: ------------------------------
[19:19:37 ERROR]: — DO NOT REPORT THIS TO PAPER - THIS IS NOT A BUG OR A CRASH —
[19:19:37 ERROR]: ------------------------------

The server probably completely overloaded

but there are only 0 players in the server at that time

1.12.2 is no longer supported, But; The server is overloaded or something caused it to not notice the time progression properly, I’d suggest using timings if you keep having such issues, but system overload is likely the cause here

This is my timing ~~"

https://timings.aikar.co/?id=4d55352a54c7410b8a706c67070b70c7