Error reading data in PLEG

Hi,
I’ve noticed today that PLEG is no longer working for me, and when I go into the device and try to Edit PLEG I get an error message “Error reading data”

I’ve tried power cycling my Vera-Plus, which is on firmware 1.7.3232

PLEG is on 8.11, PLC on 8.21 (auto update turned on)

Any suggestions what is happened or how I can get PLEG back functioning?

Cheers

Rob

In the logs I have

[Error] Failed to load resource: the server responded with a status of 404 (Not Found) (lang-en.js, line 0)
[Log] 2017-11-10 19:6:9 Error in Application.handleLanguageLoading: Failed to load language file. Using defaults. (core.js, line 13)
[Log] 2017-11-10 19:6:14 Interface: version checked (core.js, line 13)
[Log] 2017-11-10 19:6:17 [DEBUG SAVE UD]: success callback begin… (core.js, line 13)
[Log] 2017-11-10 19:6:17 [DEBUG SAVE UD]: success after 1 attempts. (core.js, line 13)
[Log] 2017-11-10 19:6:19 Error in Utils.parseJson: Empty json string (core.js, line 13)
[Log] 2017-11-10 19:6:19 Lu status cannot be parsed (core.js, line 13)
[Error] Failed to load resource: the server responded with a status of 500 (Internal Server Error) (data_request, line 0)
[Error] Failed to load resource: the server responded with a status of 500 (Internal Server Error) (data_request, line 0)
[Error] Failed to load resource: the server responded with a status of 500 (Internal Server Error) (data_request, line 0)
[Error] Failed to load resource: the server responded with a status of 500 (Internal Server Error) (data_request, line 0)
[Error] Failed to load resource: the server responded with a status of 500 (Internal Server Error) (J_PLC.js, line 0)
[Log] 2017-11-10 19:6:24 Error in calling external function: undefined (core.js, line 13)
[Log] 2017-11-10 19:6:24 handleCallPluginJsFailure(): (core.js, line 13)
[Error] Failed to load resource: the server responded with a status of 500 (Internal Server Error) (shared.js, line 0)
[Error] Failed to load resource: the server responded with a status of 500 (Internal Server Error) (data_request, line 0)
[Error] Failed to load resource: the server responded with a status of 500 (Internal Server Error) (data_request, line 0)
[Log] 2017-11-10 19:6:26 Interface.handleClickOnCpanelTabItem() error: TypeError: $tabItem.attr is not a function. (In ‘$tabItem.attr(“id”)’, ‘$tabItem.attr’ is undefined) (core.js, line 13)
[Error] Failed to load resource: the server responded with a status of 500 (Internal Server Error) (J_PLC.js, line 0)
[Log] 2017-11-10 19:6:26 Error in calling external function: undefined (core.js, line 13)
[Log] 2017-11-10 19:6:26 handleCallPluginJsFailure(): (core.js, line 13)
[Error] Failed to load resource: the server responded with a status of 500 (Internal Server Error) (shared.js, line 0)
[Error] Failed to load resource: the server responded with a status of 500 (Internal Server Error) (data_request, line 0)
[Error] Failed to load resource: the server responded with a status of 500 (Internal Server Error) (data_request, line 0)
[Error] Failed to load resource: the server responded with a status of 500 (Internal Server Error) (data_request, line 0)
[Error] Failed to load resource: the server responded with a status of 500 (Internal Server Error) (J_PLC.js, line 0)
[Log] 2017-11-10 19:6:29 Error in calling external function: undefined (core.js, line 13)
[Log] 2017-11-10 19:6:29 handleCallPluginJsFailure(): (core.js, line 13)