Sonarr / PMS connect test failure - CertificateValidation

17-3-19 17:15:22.4|Trace|Http|Req: 143 [POST] /api/notification/test
17-3-19 17:15:22.4|Debug|PlexServerService|Getting sections from Plex host: localhost
17-3-19 17:15:22.4|Debug|X509CertificateValidationPolicy|Certificate validation for https://localhost:32400/library/sections failed. RemoteCertificateChainErrors
17-3-19 17:15:22.4|Trace|PlexServerProxy|Sections response: {"MediaContainer":{"size":2,"allowSync":false,"identifier":"com.plexapp.plugins.library","mediaTagPrefix":"/system/bundle/media/flags/","mediaTagVersion":1489933540,"title1":"Plex Library","Directory":[{"allowSync":false,"art":"/:/resources/movie-fanart.jpg","composite":"/library/sections/2/composite/1437247812","filters":true,"refreshing":false,"thumb":"/:/resources/movie.png","key":"2","type":"movie","title":"Movies","agent":"com.plexapp.agents.imdb","scanner":"Plex Movie Scanner","language":"en","uuid":"15218823-04ee-43d9-a254-c16daf993956","updatedAt":1437247812,"createdAt":1403443216,"Location":[{"id":2,"path":"/Volumes/Untitled/Users/Shared/Movies"}]},{"allowSync":false,"art":"/:/resources/show-fanart.jpg","composite":"/library/sections/1/composite/1463974062","filters":true,"refreshing":false,"thumb":"/:/resources/show.png","key":"1","type":"show","title":"TV Shows","agent":"com.plexapp.agents.thetvdb","scanner":"Plex Series Scanner","language":"en","uuid":"8a1249d7-6240-4c10-be08-3bc5720680df","updatedAt":1463974062,"createdAt":1402085989,"Location":[{"id":1,"path":"/Users/jan/Movies/Series"}]}]}}
17-3-19 17:15:22.4|Trace|PlexServerProxy|Checking for error
17-3-19 17:15:22.4|Trace|PlexServerProxy|No error detected
17-3-19 17:15:22.4|Trace|Http|Res: 143 [POST] /api/notification/test: 200.OK (43 ms)
17-3-19 17:15:22.4|Debug|Api|[POST] /api/notification/test: 200.OK (43 ms)
17-3-19 17:15:25.2|Trace|Scheduler|Pending Tasks: 2