Unable to communicate with SkyHook

Sonarr version 3.0.6.1265:
Mono version 5.20.1.34:
OS SYnology NAS:
Debug logs:
Description of issue Keep getting this error Failed to load search results, please try again.
Search for ‘Good Girls’ failed. Unable to communicate with SkyHook.
:

System.Net.WebException: Error: TrustFailure (Authentication failed, see inner exception.): ‘https://skyhook.sonarr.tv/v1/tvdb/search/en/?term=1883’ —> System.Net.WebException: Error: TrustFailure (Authentication failed, see inner exception.) —> System.Security.Authentication.AuthenticationException: Authentication failed, see inner exception. —> Mono.Btls.MonoBtlsException: Ssl error:1000007d:SSL routines:OPENSSL_internal:CERTIFICATE_VERIFY_FAILED
at /spksrc/spk/mono/work-x64-7.0/mono-5.20.1.34/external/boringssl/ssl/handshake_client.c:1132
at Mono.Btls.MonoBtlsContext.ProcessHandshake () [0x00038] in :0
at Mono.Net.Security.MobileAuthenticatedStream.ProcessHandshake (Mono.Net.Security.AsyncOperationStatus status, System.Boolean renegotiate) [0x000a1] in :0
at (wrapper remoting-invoke-with-check) Mono.Net.Security.MobileAuthenticatedStream.ProcessHandshake(Mono.Net.Security.AsyncOperationStatus,bool)
at Mono.Net.Security.AsyncHandshakeRequest.Run (Mono.Net.Security.AsyncOperationStatus status) [0x00006] in :0
at Mono.Net.Security.AsyncProtocolRequest.ProcessOperation (System.Threading.CancellationToken cancellationToken) [0x000ff] in :0
at Mono.Net.Security.AsyncProtocolRequest.StartOperation (System.Threading.CancellationToken cancellationToken) [0x0008b] in :0
— End of inner exception stack trace —
at Mono.Net.Security.MobileAuthenticatedStream.ProcessAuthentication (System.Boolean runSynchronously, Mono.Net.Security.MonoSslAuthenticationOptions options, System.Threading.CancellationToken cancellationToken) [0x00252] in :0
at Mono.Net.Security.MonoTlsStream.CreateStream (System.Net.WebConnectionTunnel tunnel, System.Threading.CancellationToken cancellationToken) [0x00126] in :0
at System.Net.WebConnection.CreateStream (System.Net.WebOperation operation, System.Boolean reused, System.Threading.CancellationToken cancellationToken) [0x001ba] in :0
— End of inner exception stack trace —
at System.Net.WebConnection.CreateStream (System.Net.WebOperation operation, System.Boolean reused, System.Threading.CancellationToken cancellationToken) [0x0021a] in :0
at System.Net.WebConnection.InitConnection (System.Net.WebOperation operation, System.Threading.CancellationToken cancellationToken) [0x00141] in :0
at System.Net.WebOperation.Run () [0x0009a] in :0
at System.Net.WebCompletionSource1[T].WaitForCompletion () [0x00094] in <c5f4e317158343a5916a953327f92540>:0 at System.Net.HttpWebRequest.RunWithTimeoutWorker[T] (System.Threading.Tasks.Task1[TResult] workerTask, System.Int32 timeout, System.Action abort, System.Func1[TResult] aborted, System.Threading.CancellationTokenSource cts) [0x000f8] in <c5f4e317158343a5916a953327f92540>:0 at System.Net.HttpWebRequest.GetResponse () [0x00016] in <c5f4e317158343a5916a953327f92540>:0 at NzbDrone.Common.Http.Dispatchers.ManagedHttpDispatcher.GetResponse (NzbDrone.Common.Http.HttpRequest request, System.Net.CookieContainer cookies) [0x00123] in <11136e1590e2463e903086340d35290e>:0 --- End of inner exception stack trace --- at NzbDrone.Common.Http.Dispatchers.ManagedHttpDispatcher.GetResponse (NzbDrone.Common.Http.HttpRequest request, System.Net.CookieContainer cookies) [0x001e7] in <11136e1590e2463e903086340d35290e>:0 at NzbDrone.Common.Http.HttpClient.ExecuteRequest (NzbDrone.Common.Http.HttpRequest request, System.Net.CookieContainer cookieContainer) [0x00086] in <11136e1590e2463e903086340d35290e>:0 at NzbDrone.Common.Http.HttpClient.Execute (NzbDrone.Common.Http.HttpRequest request) [0x00008] in <11136e1590e2463e903086340d35290e>:0 at NzbDrone.Common.Http.HttpClient.Get (NzbDrone.Common.Http.HttpRequest request) [0x00007] in <11136e1590e2463e903086340d35290e>:0 at NzbDrone.Common.Http.HttpClient.Get[T] (NzbDrone.Common.Http.HttpRequest request) [0x00000] in <11136e1590e2463e903086340d35290e>:0 at NzbDrone.Core.MetadataSource.SkyHook.SkyHookProxy.SearchForNewSeries (System.String title) [0x000ff] in <b2ccbaa5d8e7430c8f2be515a642b6b9>:0 : Error: TrustFailure (Authentication failed, see inner exception.): 'https://skyhook.sonarr.tv/v1/tvdb/search/en/?term=1883' Exception System.Net.WebException: Error: TrustFailure (Authentication failed, see inner exception.): 'https://skyhook.sonarr.tv/v1/tvdb/search/en/?term=1883' ---> System.Net.WebException: Error: TrustFailure (Authentication failed, see inner exception.) ---> System.Security.Authentication.AuthenticationException: Authentication failed, see inner exception. ---> Mono.Btls.MonoBtlsException: Ssl error:1000007d:SSL routines:OPENSSL_internal:CERTIFICATE_VERIFY_FAILED at /spksrc/spk/mono/work-x64-7.0/mono-5.20.1.34/external/boringssl/ssl/handshake_client.c:1132 at Mono.Btls.MonoBtlsContext.ProcessHandshake () [0x00038] in <c5f4e317158343a5916a953327f92540>:0 at Mono.Net.Security.MobileAuthenticatedStream.ProcessHandshake (Mono.Net.Security.AsyncOperationStatus status, System.Boolean renegotiate) [0x000a1] in <c5f4e317158343a5916a953327f92540>:0 at (wrapper remoting-invoke-with-check) Mono.Net.Security.MobileAuthenticatedStream.ProcessHandshake(Mono.Net.Security.AsyncOperationStatus,bool) at Mono.Net.Security.AsyncHandshakeRequest.Run (Mono.Net.Security.AsyncOperationStatus status) [0x00006] in <c5f4e317158343a5916a953327f92540>:0 at Mono.Net.Security.AsyncProtocolRequest.ProcessOperation (System.Threading.CancellationToken cancellationToken) [0x000ff] in <c5f4e317158343a5916a953327f92540>:0 at Mono.Net.Security.AsyncProtocolRequest.StartOperation (System.Threading.CancellationToken cancellationToken) [0x0008b] in <c5f4e317158343a5916a953327f92540>:0 --- End of inner exception stack trace --- at Mono.Net.Security.MobileAuthenticatedStream.ProcessAuthentication (System.Boolean runSynchronously, Mono.Net.Security.MonoSslAuthenticationOptions options, System.Threading.CancellationToken cancellationToken) [0x00252] in <c5f4e317158343a5916a953327f92540>:0 at Mono.Net.Security.MonoTlsStream.CreateStream (System.Net.WebConnectionTunnel tunnel, System.Threading.CancellationToken cancellationToken) [0x00126] in <c5f4e317158343a5916a953327f92540>:0 at System.Net.WebConnection.CreateStream (System.Net.WebOperation operation, System.Boolean reused, System.Threading.CancellationToken cancellationToken) [0x001ba] in <c5f4e317158343a5916a953327f92540>:0 --- End of inner exception stack trace --- at System.Net.WebConnection.CreateStream (System.Net.WebOperation operation, System.Boolean reused, System.Threading.CancellationToken cancellationToken) [0x0021a] in <c5f4e317158343a5916a953327f92540>:0 at System.Net.WebConnection.InitConnection (System.Net.WebOperation operation, System.Threading.CancellationToken cancellationToken) [0x00141] in <c5f4e317158343a5916a953327f92540>:0 at System.Net.WebOperation.Run () [0x0009a] in <c5f4e317158343a5916a953327f92540>:0 at System.Net.WebCompletionSource1[T].WaitForCompletion () [0x00094] in :0
at System.Net.HttpWebRequest.RunWithTimeoutWorker[T] (System.Threading.Tasks.Task1[TResult] workerTask, System.Int32 timeout, System.Action abort, System.Func1[TResult] aborted, System.Threading.CancellationTokenSource cts) [0x000f8] in :0
at System.Net.HttpWebRequest.GetResponse () [0x00016] in :0
at NzbDrone.Common.Http.Dispatchers.ManagedHttpDispatcher.GetResponse (NzbDrone.Common.Http.HttpRequest request, System.Net.CookieContainer cookies) [0x00123] in <11136e1590e2463e903086340d35290e>:0
— End of inner exception stack trace —
at NzbDrone.Common.Http.Dispatchers.ManagedHttpDispatcher.GetResponse (NzbDrone.Common.Http.HttpRequest request, System.Net.CookieContainer cookies) [0x001e7] in <11136e1590e2463e903086340d35290e>:0
at NzbDrone.Common.Http.HttpClient.ExecuteRequest (NzbDrone.Common.Http.HttpRequest request, System.Net.CookieContainer cookieContainer) [0x00086] in <11136e1590e2463e903086340d35290e>:0
at NzbDrone.Common.Http.HttpClient.Execute (NzbDrone.Common.Http.HttpRequest request) [0x00008] in <11136e1590e2463e903086340d35290e>:0
at NzbDrone.Common.Http.HttpClient.Get (NzbDrone.Common.Http.HttpRequest request) [0x00007] in <11136e1590e2463e903086340d35290e>:0
at NzbDrone.Common.Http.HttpClient.Get[T] (NzbDrone.Common.Http.HttpRequest request) [0x00000] in <11136e1590e2463e903086340d35290e>:0
at NzbDrone.Core.MetadataSource.SkyHook.SkyHookProxy.SearchForNewSeries (System.String title) [0x000ff] in :0
Clos

Not a sonarr issue

Asked repeatedly before

This is a bug caused by the SynoCommunity’s broken mono package

Fab. Thanks for the heads up.
So after a bit more google work it turned out to be certificates issues with Mono.
Logging in by SSH and running a command updated and it worked.
Thanks again