2019-09-03 12:02:23 [WARN]  (Hangfire.Server.Worker) Slow log: Hangfire.DisableConcurrentExecutionAttribute performed "OnPerforming for e1e86681-70dc-484e-b7ba-015188696f79" in 60 sec
2019-09-03 12:02:23 [ERROR] (Hangfire.AutomaticRetryAttribute) Failed to process the job 'e1e86681-70dc-484e-b7ba-015188696f79': an exception occurred.
System.Threading.SynchronizationLockException
Object synchronization method was called from an unsynchronized block of code.
   at Hangfire.MemoryStorage.Utilities.LocalLock..ctor(String resource, TimeSpan timeout)
   at Hangfire.MemoryStorage.MemoryStorageConnection.AcquireDistributedLock(String resource, TimeSpan timeout)
   at Hangfire.DisableConcurrentExecutionAttribute.OnPerforming(PerformingContext filterContext)
   at Hangfire.Profiling.ProfilerExtensions.InvokeAction[TInstance](InstanceAction`1 tuple)
   at Hangfire.Profiling.SlowLogProfiler.InvokeMeasured[TInstance,TResult](TInstance instance, Func`2 action, String message)
   at Hangfire.Profiling.ProfilerExtensions.InvokeMeasured[TInstance](IProfiler profiler, TInstance instance, Action`1 action, String message)
   at Hangfire.Server.BackgroundJobPerformer.InvokePerformFilter(IServerFilter filter, PerformingContext preContext, Func`1 continuation)