After installing the Live Helpdesk trial and setting it up, the page renders empty the module content seems to have disappeared.
I cleared the DNN cache, but that does not help.
It seems like a JSON loading error, I see this in the browser console:

Error: JSON.parse: unexpected character at line 1 column 3044 of the JSON data
linker/<@https://www.mysite.xx/DesktopModules/Mandeeps/Libraries/Common/Frameworks/AngularJS/Plugins/mnCommonService/mnCommonService.min.js?cdv=198:222:35
k/g.success/<@https://www.mysite.xx/DesktopModules/Mandeeps/Libraries/Common/Frameworks/AngularJS/1.3.9/angular.min.js?cdv=198:81:132
f/<@https://www.mysite.xx/DesktopModules/Mandeeps/Libraries/Common/Frameworks/AngularJS/1.3.9/angular.min.js?cdv=198:112:343
$eval@https://www.mysite.xx/DesktopModules/Mandeeps/Libraries/Common/Frameworks/AngularJS/1.3.9/angular.min.js?cdv=198:126:193
$digest@https://www.mysite.xx/DesktopModules/Mandeeps/Libraries/Common/Frameworks/AngularJS/1.3.9/angular.min.js?cdv=198:123:286
$apply@https://www.mysite.xx/DesktopModules/Mandeeps/Libraries/Common/Frameworks/AngularJS/1.3.9/angular.min.js?cdv=198:126:471
l@https://www.mysite.xx/DesktopModules/Mandeeps/Libraries/Common/Frameworks/AngularJS/1.3.9/angular.min.js?cdv=198:81:422
O@https://www.mysite.xx/DesktopModules/Mandeeps/Libraries/Common/Frameworks/AngularJS/1.3.9/angular.min.js?cdv=198:86:51
wf/</w. @https://www.mysite.xx/DesktopModules/Mandeeps/Libraries/Common/Frameworks/AngularJS/1.3.9/angular.min.js?cdv=198:87:78

Any hints how I can fix this?