Problem/Bug Server crashing

Hi out there
Im running a little private server around 20 people. And lately with more active players i've begun to get constantly crashed, if someone could help med with figuring out why it crashes would be awesome
Im still kinda new and learning so, as said help appreciated

Greetings
Marcus

 

Alright here it is
https://pastebin.com/Q4LijUGw

 

Ah ok, i hope this is it https://pastebin.com/eGYcF7bc

 

@timtower

 

@MidtGamingDK

1. GriefProtection does not support 1.12. Remove it.
2. Your version of WorldEdit does not support 1.12. Update it.
3. EnchantedFurnace does not support 1.12. Either update it or remove it.
4. Jobs is broken. Either find an update or remove it.

The reason the server is crashing is that something is hanging the server. I recommend removing all non-important plugins and see if the crashes still occur.

 

Ah ok, ill try see if it works
Thanks for the help

 

Sorry for bothering again, but the server ran fine for around 45 hours and then the same happened again, it couldn't keep up and one tick took waaaaayyyy too long time, so it crashed. i've tried without plugins and then it runs fine. It also does when plugins is enabled, but when a bit of load comes on (2-3 players or more) it crashes pretty quickly.
I dont think it have anything to do with the specs, but ill list them anyway if it helps:
i5 4440 3,3 ghz quad core
8gb ram
5400 rpm 750 gb harddrive

I've also monitored the loads, and they dont come up very high.
Cpu stays under 20% with 3-4 players
Memory does not exceed 70%
Hdd usage does not exceed 50%

My internet i also probably fine, but ill list them anyway if it helps:
Down: 150~160 mbit/s
Up: 20~25 mbit/s

Server log and crash log is also here:
Server log: https://pastebin.com/GYasNnUX
Crash log: https://pastebin.com/31BVnifL

Thanks again in advance
~Marcus

 

@MidtGamingDK
You still have not updated your plugins. You should do that.

If the CPU is under 20% and yet still lags/crashes, that means that something with the server is wrong. Can you post the text used in the run.bat file (or if you don't have that, post what you do to run the server)

 

Hmm wierd, because i've got the newest updates i could find for the plugins.
As far as the bat file i use this line:
java -Xms1024M -Xmx6144M -jar craftbukkit-1.12.2.jar nogui
pause

I states running 4 threads and 6 gigs of ram

 

This is wierd, i made absolutely no change to the server. Other than installing permissionsex.
And now i runs totally fine with 10 players at 45% cpu usage and 63% ram usage