The tabs across the top of the page are displayed ( [Kits] [Items] [Commands] etc... ) and the background image "Ammunition" is visible, but there are no item categories or items.  

I've removed the plugin, the ServerRewards data folder and lang files, re-installed the plugin -  no change.

Console:
Unloaded plugin Server Rewards v0.4.73 by k1lly0u
(Filename: ./Runtime/Ex
ServerRewards was compiled successfully in 2976ms
(Filename: ./Runtime/Export/Debug/Debug.bindings.h Line: 39)

Fallback handler could not load library /home/rustserver/serverfiles/RustDedicated_Data/Mono/data-0x558913d2f0f0.so
[Server Rewards] No reward data found! Creating a new data file
(Filename: ./Runtime/Export/Debug/Debug.bindings.h Line: 39)

[Server Rewards] All UI elements have been successfully generated!
(Filename: ./Runtime/Export/Debug/Debug.bindings.h Line: 39)

Calling 'OnServerInitialized' on 'ServerRewards v0.4.73' took 578ms
(Filename: ./Runtime/Export/Debug/Debug.bindings.h Line: 39)

Loaded plugin Server Rewards v0.4.73 by k1lly0u
(Filename: ./Runtime/Export/Debug/Debug.bindings.h Line: 39)

Sample of items in reward_data.json

"items": {
"tshirt_0": {
"shortname": "tshirt",
"customIcon": null,
"amount": 1,
"skinId": 0,
"isBp": false,
"category": 5,
"displayName": "T-Shirt",
"cost": 1,
"cooldown": 0
},
"ammo.rifle_0": {
"shortname": "ammo.rifle",
"customIcon": null,
"amount": 50,
"skinId": 0,
"isBp": false,
"category": 9,
"displayName": "5.56 Rifle Ammo",
"cost": 1,
"cooldown": 0
},
"ammo.shotgun_0": {
"shortname": "ammo.shotgun",
"customIcon": null,
"amount": 20,
"skinId": 0,
"isBp": false,
"category": 9,
"displayName": "12 Gauge Buckshot",
"cost": 1,
"cooldown": 0
},

env
Distro: Debian GNU/Linux 10 (buster)
Arch: x86_64
Kernel: 4.19.0-16-amd64

Any assistance would be greatly appreciated.

Thanks

Update:  I've backed up my config and data directories, uninstalled Oxide, and deleted the directory structure, re-installed oxide, performed a server full-wipe, downloaded fresh copies of ImageLibrary and ServerRewards,  (currently the only 2 plugins installed).  Unfortuantley this yeilds the same result.   Any ideas?   Thanks

Merged post

Seeing these errors as well?  Can anyone at least confirm that this might the culprit?  
Server startup complete
Fallback handler could not load library /home/rustserver/serverfiles/RustDedicated_Data/Mono/libadvapi32.dll
Fallback handler could not load library /home/rustserver/serverfiles/RustDedicated_Data/Mono/libadvapi32.dll.so
Fallback handler could not load library /home/rustserver/serverfiles/RustDedicated_Data/Mono/advapi32.dll
Fallback handler could not load library /home/rustserver/serverfiles/RustDedicated_Data/Mono/libadvapi32
Fallback handler could not load library /home/rustserver/serverfiles/RustDedicated_Data/Mono/libadvapi32.so
Fallback handler could not load library /home/rustserver/serverfiles/RustDedicated_Data/Mono/advapi32
Fallback handler could not load library /home/rustserver/serverfiles/RustDedicated_Data/Mono/libadvapi32.dll
Fallback handler could not load library /home/rustserver/serverfiles/RustDedicated_Data/Mono/libadvapi32.dll.so
Fallback handler could not load library /home/rustserver/serverfiles/RustDedicated_Data/Mono/libadvapi32.dll
Fallback handler could not load library /home/rustserver/serverfiles/RustDedicated_Data/Mono/libadvapi32.dll
Fallback handler could not load library /home/rustserver/serverfiles/RustDedicated_Data/Mono/libadvapi32.dll.so
Fallback handler could not load library /home/rustserver/serverfiles/RustDedicated_Data/Mono/advapi32.dll
Fallback handler could not load library /home/rustserver/serverfiles/RustDedicated_Data/Mono/libadvapi32
Fallback handler could not load library /home/rustserver/serverfiles/RustDedicated_Data/Mono/libadvapi32.so
Fallback handler could not load library /home/rustserver/serverfiles/RustDedicated_Data/Mono/advapi32
Fallback handler could not load library /home/rustserver/serverfiles/RustDedicated_Data/Mono/libadvapi32.dll
Fallback handler could not load library /home/rustserver/serverfiles/RustDedicated_Data/Mono/libadvapi32.dll.so
Fallback handler could not load library /home/rustserver/serverfiles/RustDedicated_Data/Mono/libadvapi32.dll
Thanks

Merged post

Really hoping someone can weigh in on this...