here is your log. Looking at it, I can see that you have some errors with your server
a lot of misconfiguration, probably…
check your server core file integrity to make sure everything is up to date
I can see that you are using Linux, so check that the server has all the permissions to access all the folders.
Also, there might be a possibility that your VPS doesn't have enough ram to run this MC server... can you run a timings report?