Hi I have exactly the same problem as in this topic
https://plaza.quickbox.io/t/launch-jackett-after-installation-failed/4690/7
I’ve done box upgrade (today update)
I’ve installed uninstalled same issue
{ "result": "error", "error": "Could not load file or assembly 'System.Runtime, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies.", "stacktrace": " at Jackett.Controllers.WebUIController+<Dashboard>d__7.MoveNext () <0x41d85bf0 + 0x00133> in <filename unknown>:0 \n--- End of stack trace from previous location where exception was thrown ---\n at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () <0x7fad7c4018a0 + 0x00029> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) <0x7fad7c3ff880 + 0x000a7> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) <0x7fad7c3ff800 + 0x0006b> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) <0x7fad7c3ff7b0 + 0x0003a> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter`1[TResult].GetResult () <0x7fad7c3ffaa0 + 0x00017> in <filename unknown>:0 \n at System.Threading.Tasks.TaskHelpersExtensions+<CastToObject>d__1`1[T].MoveNext () <0x41d867f0 + 0x0019b> in <filename unknown>:0 \n--- End of stack trace from previous location where exception was thrown ---\n at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () <0x7fad7c4018a0 + 0x00029> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) <0x7fad7c3ff880 + 0x000a7> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) <0x7fad7c3ff800 + 0x0006b> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) <0x7fad7c3ff7b0 + 0x0003a> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter`1[TResult].GetResult () <0x7fad7c3ffaa0 + 0x00017> in <filename unknown>:0 \n at System.Web.Http.Tracing.ITraceWriterExtensions+<TraceBeginEndAsyncCore>d__17`1[TResult].MoveNext () <0x41d872a0 + 0x00516> in <filename unknown>:0 \n--- End of stack trace from previous location where exception was thrown ---\n at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () <0x7fad7c4018a0 + 0x00029> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) <0x7fad7c3ff880 + 0x000a7> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) <0x7fad7c3ff800 + 0x0006b> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) <0x7fad7c3ff7b0 + 0x0003a> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter`1[TResult].GetResult () <0x7fad7c3ffaa0 + 0x00017> in <filename unknown>:0 \n at System.Web.Http.Controllers.ApiControllerActionInvoker+<InvokeActionAsyncCore>d__1.MoveNext () <0x41d834a0 + 0x002b1> in <filename unknown>:0 \n--- End of stack trace from previous location where exception was thrown ---\n at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () <0x7fad7c4018a0 + 0x00029> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) <0x7fad7c3ff880 + 0x000a7> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) <0x7fad7c3ff800 + 0x0006b> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) <0x7fad7c3ff7b0 + 0x0003a> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter`1[TResult].GetResult () <0x7fad7c3ffaa0 + 0x00017> in <filename unknown>:0 \n at System.Web.Http.Tracing.ITraceWriterExtensions+<TraceBeginEndAsyncCore>d__17`1[TResult].MoveNext () <0x41d872a0 + 0x00516> in <filename unknown>:0 \n--- End of stack trace from previous location where exception was thrown ---\n at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () <0x7fad7c4018a0 + 0x00029> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) <0x7fad7c3ff880 + 0x000a7> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) <0x7fad7c3ff800 + 0x0006b> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) <0x7fad7c3ff7b0 + 0x0003a> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter`1[TResult].GetResult () <0x7fad7c3ffaa0 + 0x00017> in <filename unknown>:0 \n at System.Web.Http.Filters.ActionFilterAttribute+<CallOnActionExecutedAsync>d__6.MoveNext () <0x41d81f20 + 0x0025d> in <filename unknown>:0 \n--- End of stack trace from previous location where exception was thrown ---\n at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () <0x7fad7c4018a0 + 0x00029> in <filename unknown>:0 \n at System.Web.Http.Filters.ActionFilterAttribute+<CallOnActionExecutedAsync>d__6.MoveNext () <0x41d81f20 + 0x008b3> in <filename unknown>:0 \n--- End of stack trace from previous location where exception was thrown ---\n at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () <0x7fad7c4018a0 + 0x00029> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) <0x7fad7c3ff880 + 0x000a7> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) <0x7fad7c3ff800 + 0x0006b> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) <0x7fad7c3ff7b0 + 0x0003a> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter`1[TResult].GetResult () <0x7fad7c3ffaa0 + 0x00017> in <filename unknown>:0 \n at System.Web.Http.Filters.ActionFilterAttribute+<ExecuteActionFilterAsyncCore>d__5.MoveNext () <0x41d809a0 + 0x00387> in <filename unknown>:0 \n--- End of stack trace from previous location where exception was thrown ---\n at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () <0x7fad7c4018a0 + 0x00029> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) <0x7fad7c3ff880 + 0x000a7> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) <0x7fad7c3ff800 + 0x0006b> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) <0x7fad7c3ff7b0 + 0x0003a> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter`1[TResult].GetResult () <0x7fad7c3ffaa0 + 0x00017> in <filename unknown>:0 \n at System.Web.Http.Controllers.ActionFilterResult+<ExecuteAsync>d__5.MoveNext () <0x41d7ee10 + 0x00795> in <filename unknown>:0 \n--- End of stack trace from previous location where exception was thrown ---\n at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () <0x7fad7c4018a0 + 0x00029> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) <0x7fad7c3ff880 + 0x000a7> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) <0x7fad7c3ff800 + 0x0006b> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) <0x7fad7c3ff7b0 + 0x0003a> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter`1[TResult].GetResult () <0x7fad7c3ffaa0 + 0x00017> in <filename unknown>:0 \n at System.Web.Http.Filters.AuthorizationFilterAttribute+<ExecuteAuthorizationFilterAsyncCore>d__3.MoveNext () <0x41d7bfa0 + 0x0036e> in <filename unknown>:0 \n--- End of stack trace from previous location where exception was thrown ---\n at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () <0x7fad7c4018a0 + 0x00029> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) <0x7fad7c3ff880 + 0x000a7> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) <0x7fad7c3ff800 + 0x0006b> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) <0x7fad7c3ff7b0 + 0x0003a> in <filename unknown>:0 \n at System.Runtime.CompilerServices.TaskAwaiter`1[TResult].GetResult () <0x7fad7c3ffaa0 + 0x00017> in <filename unknown>:0 \n at System.Web.Http.Controllers.ExceptionFilterResult+<ExecuteAsync>d__6.MoveNext () <0x41d7a460 + 0x00258> in <filename unknown>:0 " }