SEC startup fail and Services won't start - just status "starting"

Hey guys,

my SEC won't start anymore. Errormessage:

Sophos.UIController.Extension.UIControllerException: Cannot retrieve session token after 8 retries. Please check that the Sophos Management Host service is running, otherwise see KBA 118513.
   at Sophos.UIController.IdentityServiceAbstracter.EndRetrieveSessionToken()
   at Sophos.UIController.UIControl.InitializeModulesDependencies()
   at Sophos.UIController.UIControl.<Initialize>b__b()
   at Sophos.UIController.Product.Logging.LogMethod(MemberInfo method, Action func)
   at Sophos.UIController.UIControl.Initialize()

----- [outer exception] -----
   -- error: 0x80004005 (Unspecified error)
   -- facility: Generic (System)
   -- source:   Sophos.UIController

   at class ATL::CComBSTR __thiscall UIControl::initialize(class ATL::CComPtr<struct IDispatch>)
   at class ATL::CComPtr<struct IDispatch> __thiscall bl::CReusingManagementServiceClientBroker::logIn(const struct util::UserName &,class Loki::SmartPtr<class bl::SubEstate,class Loki::RefCountedMTAdj<class Loki::ClassLevelLockable>::RefCountedMT,struct Loki::DisallowConversion,struct util::NoDereferenceNull,class Loki::DefaultSPStorage>,const wchar_t *,class bl::UIControllerBase &)
   at int __cdecl Run(int,class bl::CommandLine,enum bl::ConsoleType::Type)
   at int __stdcall wWinMain(struct HINSTANCE__ *,struct HINSTANCE__ *,wchar_t *,int)

I read a few article about this error but mostly the problem is, that the Sophos Management Host Service didn't start. In my case it did - BUT I detected the services

Sophos Patch Endpoint Communicator

Sophos Patch EndpointOrchestrator

Sophos Patch Server Communicator

won't start. They are just pending in "starting", without getting to "started".

Is there maybe a connection between the Error of SEC and the services not starting?

And what can I do to get these services running again?

greetings Marshallyx