logs

Activity isn't launching. Red message with 'There was an error loading the activity. Please contact Cengage Learning technical support. a18f5cc8-8cc5-4dfe-8f99-ae03e79b7ee4' text is shown. 'launchActivity' call has 500 status.

Console error:
jquery-2.2.4.min.js:4 POST https://mindtap-int.cengage.com/mindapp-cxp/rest/soaactivity/launchActivity 500 (Internal Server Error)
send @ jquery-2.2.4.min.js:4
ajax @ jquery-2.2.4.min.js:4
value @ cas-interaction.js:1
value @ cas-interaction.js:1
(anonymous) @ cas-interaction.js:1
(anonymous) @ activity.js:30
send @ event.js:442
Event @ event.js:369
(anonymous) @ event.js:245
waiting.(anonymous function) @ event.js:91
calledBack @ event.js:122
pmCallback @ event.js:172
postMessage (async)
m @ bundle.js:39
(anonymous) @ bundle.js:39
send @ bundle.js:39
resume @ bundle.js:39
i @ bundle.js:93
(anonymous) @ bundle.js:93
send @ bundle.js:39
o @ bundle.js:39
y @ bundle.js:39
postMessage (async)
send @ event.js:96
pub @ event.js:235
getDetail @ activity.js:29
(anonymous) @ cas-interaction.js:1
(anonymous) @ app.js:140
setTimeout (async)
(anonymous) @ app.js:139
send @ event.js:442
Event @ event.js:369
(anonymous) @ event.js:245
waiting.(anonymous function) @ event.js:91
calledBack @ event.js:122
pmCallback @ event.js:172
postMessage (async)
m @ bundle.js:39
(anonymous) @ bundle.js:39
send @ bundle.js:39
send @ bundle.js:39
o @ bundle.js:39
y @ bundle.js:39
postMessage (async)
send @ event.js:96
pub @ event.js:235
factoryResult.app.Clui.app @ app.js:93
(anonymous) @ cas-interaction.js:1
fn @ steal.js:1610
fn @ steal.js:1349
require @ steal.js:1256
ConfigManager.require @ steal.js:1236
execute @ steal.js:1883
(anonymous) @ steal.js:384
(anonymous) @ steal.js:368
each @ steal.js:46
exec @ steal.js:367
(anonymous) @ steal.js:307
resolve @ steal.js:360
(anonymous) @ steal.js:292
(anonymous) @ steal.js:368
each @ steal.js:46
exec @ steal.js:367
(anonymous) @ steal.js:307
resolve @ steal.js:360
(anonymous) @ steal.js:386
(anonymous) @ steal.js:368
each @ steal.js:46
exec @ steal.js:367
(anonymous) @ steal.js:307
resolve @ steal.js:360
(anonymous) @ steal.js:292
(anonymous) @ steal.js:368
each @ steal.js:46
exec @ steal.js:367
(anonymous) @ steal.js:307
resolve @ steal.js:360
(anonymous) @ steal.js:386
(anonymous) @ steal.js:368
each @ steal.js:46
exec @ steal.js:367
(anonymous) @ steal.js:307
resolve @ steal.js:360
(anonymous) @ steal.js:292
(anonymous) @ steal.js:368
each @ steal.js:46
exec @ steal.js:367
(anonymous) @ steal.js:307
resolve @ steal.js:360
(anonymous) @ steal.js:386
(anonymous) @ steal.js:368
each @ steal.js:46
exec @ steal.js:367
(anonymous) @ steal.js:307
resolve @ steal.js:360
complete @ steal.js:1650
after_Ret @ steal.js:144
executed @ steal.js:1709
before_args @ steal.js:134
before_args @ steal.js:134
config.require.abortFlag @ steal.js:1884
require_continue_check @ steal.js:1261
fn @ steal.js:1351
require @ steal.js:1256
ConfigManager.require @ steal.js:1236
execute @ steal.js:1883
(anonymous) @ steal.js:1831
each @ steal.js:46
loadDependencies @ steal.js:1830
executed @ steal.js:1713
before_args @ steal.js:134
before_args @ steal.js:134
config.require.abortFlag @ steal.js:1884
require_continue_check @ steal.js:1261
callback @ steal.js:1297
cas-interaction.js:1 Error launching activity attempt. {"error":"Error launching activity: Received error launching activity with takeRequest [{\"activityPath\":\"CAS:\\\/\\\/\",\"courseCgi\":\"WFZEBKN7RSLZAXP7R982\",\"courseKey\":\"MTPQ3VGP3HM6\",\"isGradable\":\"\",\"ltiLaunchId\":\"mta5510181:8327:0:1508502733\",\"refId\":\"12e8a2a7-2236-43a6-a19c-28ef51db0767\",\"reviewOnly\":false,\"role\":\"INSTRUCTOR\",\"snapshotId\":41419,\"takeId\":\"\",\"userId\":\"ff4c44c5819bc616:766c2f0:14f8b7c43e0:258a\",\"endDate\":1527825599000}]","correlationId":"a18f5cc8-8cc5-4dfe-8f99-ae03e79b7ee4","errorMessage":"Received error from CAS; correlationId: a18f5cc8-8cc5-4dfe-8f99-ae03e79b7ee4, CAS correlation ID: GSDJLWru","stack":["com.cengage.nextbook.cxpapp.util.CasRestClient.callService(CasRestClient.java:83)","com.cengage.nextbook.cxpapp.util.CasRestClient.start(CasRestClient.java:42)","com.cengage.nextbook.cxpapp.service.interaction.SoaInteractionService.startAttempt(SoaInteractionService.java:115)","com.cengage.nextbook.cxpapp.service.interaction.SoaInteractionService.startNewAttempt(SoaInteractionService.java:92)","com.cengage.nextbook.cxpapp.web.resources.SoaActivityResource.startAttemptForNonStudent(SoaActivityResource.java:213)","com.cengage.nextbook.cxpapp.web.resources.SoaActivityResource.launchCXPActivity(SoaActivityResource.java:134)","sun.reflect.GeneratedMethodAccessor741.invoke(Unknown Source)","sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)","java.lang.reflect.Method.invoke(Method.java:497)","com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60)"]} a18f5cc8-8cc5-4dfe-8f99-ae03e79b7ee4


please Refer to:
Desktop view: https://www.screencast.com/t/ScDD535oEu
Mobile Responsive view: https://www.screencast.com/t/8UazSfVa