• InventoryTweaks - Possible dupes.
• CustomMainMenu - Client side mod.
• MainMenuScale - Client side mod.
• MouseTweaks - Client side mod.
• LoadingScreens - Client side mod.
• MultiMine - Lag issues on multi-player servers.

Restricted Items: 

• Wither Ring - Trinkets and Baubles - Crashes with lyncanites mobs, disabled until update.
• All creative only items are restricted.(Except items craftable by in game recipe.)
• All Soulcubes are restricted in the Overworld only.
• Disenchantment table - Disenchanter - Dupe bugs
• Armor Stand - Vanilla - Dupe Bugs

Disabled Mobs:

• Xaphan - Due to the high amount of lag caused by Exp farms.

With this restricted items your stuff on the server will be safe from grief so you can play without worries.