The Execute method of job definition Microsoft.Office.Server.UserProfiles.LMTRepopulationJob (ID 50134f59-757c-4d0e-a4c2-74b2620ab047) threw an exception. More information is included below.
Unexpected exception in FeedCacheService.IsRepopulationNeeded: Unable to create a DataCache.
Also you can check out:
As the exception message suggested the SPDistributedCache may be down.
So to verify this you need to (re)start AppFabric Caching Service. To start the service:
1) Open the Run prompt then services.msc
2) Select AppFabric Caching Service.
3) double click the service.
4) set start up type to Automatic and then click on Start.
5) Then apply and then OK
Now the exception should not come.