Server Randomly Crashing!

Hi, my server has been having a lot of crashing problems lately. The crashes happen randomly and give no log the server just randomly starts to have a lot of lag then it just says Stopping server... then it disables all of the plugins and freezes and doesn't even complete the stopping, I then have to restart the server and it rolls it back. I have no idea why this is happening because it doesn't have any crash errors. Please help!! It would be really nice to have a server that can run continuously again!
THX!!!!!!

 

Possibly not enough RAM allocated to it?
You might have to many plugins for the amount of ram you're allocating, then again this is just a wild guess, I dedicate 5gb's to my server so I don't have crashes unless I over-load world edit, which is usually a memory issue.
So, from MY experience I can see only a memory problem. Though I could be wrong. Hope you figure it out!

 

My computer is 8gb and i dedicated 4gb to the server and my computer says it has 4 gb left. So why would it be crashing out of memory if it has another 4gb? When i try to allocate more memory it has i don't have enough memory to allocate it but i do... so idk? I think its a memory problem too but i can't figure out why.

 

cameron112233 How much do you have allocated to your minecraft launcher?
Possibly if you have 4gb dedicated to your server and you have 4 gb dedicated to your launcher, your system might have memory issues and cause a crash?
Possibly. Though like I said before, I'm not entirely sure