A bunch of plugins, with June 2021 update, are not able to compile when loading due to the error...

error CS0117: `RelationshipManager' does not contain a definition for `Instance'

RemoveTool
BuildingGrades
PreventLooting
AdminRadar
CCTVControl
NTeleportation
PanterboxDefender
QuarryLocks
ServerArmour
VendorDeployedLocks
VehicleLicense

Please check the individual plugin sections for fixes and updates.

Checked all plugins on my Rust server for new versions, updated rust, updated Oxide, now 6 of them aren't working:

> o.reload StackSizeController
Error while compiling: StackSizeController.cs(805,33): error CS1061: Type `Oxide.Plugins.StackSizeController.ItemInfo' does not contain a definition for `IsNull' and no extension method `IsNull' of type `Oxide.Plugins.StackSizeController.ItemInfo' could be found. Are you missing `UnityEngine.Playables' using directive?
> o.reload AdminRadar
Error while compiling: AdminRadar.cs(2455,54): error CS0117: `RelationshipManager' does not contain a definition for `Instance'
> o.reload NTeleportation
Error while compiling: NTeleportation.cs(5104,41): error CS0117: `RelationshipManager' does not contain a definition for `Instance'
> o.reload RemoverTool
Error while compiling: RemoverTool.cs(1594,50): error CS0117: `RelationshipManager' does not contain a definition for `Instance'
> o.reload BuildingGrades
Error while compiling: BuildingGrades.cs(257,50): error CS0117: `RelationshipManager' does not contain a definition for `Instance'
> o.reload PreventLooting
Error while compiling: PreventLooting.cs(393,70): error CS0117: `RelationshipManager' does not contain a definition for `Instance'

Please see the individual plugin support sections for existing threads and await updates, thanks. These are known issues and will require plugin updates to fix them.