Server crashing Randomly when doing a map cleanup

[YaBoiMenace]

My TTT server is crashing randomly 1 to 2 times a day at the end of the round when the map is getting rebuilded(game.CleanUpMap())
My console just freezes and not responsive i cant even type quit to close the server i must terminate the session then i can start the server again.

I have added custom prints to my gamemode init file
local function CleanUp()
   print("CleanUpStarted")
   local et = ents.TTT
   -- if we are going to import entities, it's no use replacing HL2DM ones as
   -- soon as they spawn, because they'll be removed anyway
   et.SetReplaceChecking(not et.CanImportEntities(game.GetMap()))

   et.FixParentedPreCleanup()
   game.CleanUpMap()
   print("CleanUpSuccess")
   et.FixParentedPostCleanup()

   -- Strip players now, so that their weapons are not seen by ReplaceEntities
   for k,v in pairs(player.GetAll()) do
      if IsValid(v) then
         v:StripWeapons()
      end
   end

   -- a different kind of cleanup
   util.SafeRemoveHook("PlayerSay", "ULXMeCheck")
   print("CleanFinished")
end
And here is my console output when it crashes
ServerLog: Round ended.
ServerLog: Result: traitors win.
CleanUpStarted
Then it freezes/crashes and then i must terminate the session
because the quit cmd does nothing

Specs
i7 6700k
1gp of ram
I run the server on a VPS

Things i have tried
Reinstalling gmod server
Change VPS Host
Removing all unnecessary addons
Running the Gmodserver on a vps with more ram did nothing still having the same problem

Distro Details
=================================
Distro:    Debian GNU/Linux 8.4 (jessie)
Arch:      x86_64
Kernel:    3.16.0-4-amd64
Hostname: 
tmux:      tmux 1.9
GLIBC:     2.19

Performance
Uptime:    4d, 19h, 14m
Avg Load:  0.94, 0.61, 0.46

Mem:       total   used   free     cached
Physical:  993M    914M   79M      361M
Swap:      1.1G    22M    1.0G

Storage
=================================
Filesystem:      /dev/sda1
Total:           24G
Used:            16G
Available:       6.8G
LinuxGSM Total:  8.7G
Serverfiles:     6.4G

Garry's Mod Server Details
=================================
Server name:     
Server IP:       
Server password:  ***********
RCON password:    ***********
Maxplayers:       28
Game mode:        terrortown
Tick rate:        66
Status:           ONLINE

Thanks you for taking the time and reading this!