Unstable server help.

Hey, my server is extremely unstable for some reason. Sometimes nothing crashes it, other times adv dupes crash it, and mostly it’s duplications crashing it.

The server is running gm_flatgrass, has 18 player slots and the usual ping is about 30-40.

INSTALLED ADDONS:
Adv Duplicator
Adv. Teleporter
Adv. Sleep ‘n’ Wake STool
Anti-Noclip
Door STool
Massless Thrusters
Phoenix Storms 3 (Latest SVN Version)
Prop_Balloon
Simple Prop Protection (I believe it’s SVN…)
Rocket_ulx35
Smart Welding
SolidVote
Stacker STool
ULIB & ULX (Latest SVN Version)
ULX_SVN_AntiPhysgun
ULX_SVN_ClearDecals
Unbreakable STool
UnoLimited_v2
warn2 (Doesn’t work at all.)
Weight STool
Wiremod (The wire folder is SVN, I had to upload the wire model pack 1 from my local addons folder though, as the SVN didn’t seem to have the full model pack 1… which might cause some problems.)