See https://curl.haxx.se/libcurl/c/libcurl-errors.html for description of the curl error code.
Details
Trace
#0 index.php(68): RssBridge->main()
#1 lib/RssBridge.php(39): RssBridge->{closure}()
#2 lib/RssBridge.php(37): CacheMiddleware->__invoke()
#3 middlewares/CacheMiddleware.php(44): RssBridge->{closure}()
#4 lib/RssBridge.php(37): ExceptionMiddleware->__invoke()
#5 middlewares/ExceptionMiddleware.php(17): RssBridge->{closure}()
#6 lib/RssBridge.php(37): SecurityMiddleware->__invoke()
#7 middlewares/SecurityMiddleware.php(19): RssBridge->{closure}()
#8 lib/RssBridge.php(37): MaintenanceMiddleware->__invoke()
#9 middlewares/MaintenanceMiddleware.php(10): RssBridge->{closure}()
#10 lib/RssBridge.php(37): BasicAuthMiddleware->__invoke()
#11 middlewares/BasicAuthMiddleware.php(13): RssBridge->{closure}()
#12 lib/RssBridge.php(37): TokenAuthenticationMiddleware->__invoke()
#13 middlewares/TokenAuthenticationMiddleware.php(10): RssBridge->{closure}()
#14 lib/RssBridge.php(34): DisplayAction->__invoke()
#15 actions/DisplayAction.php(54): DisplayAction->createResponse()
#16 actions/DisplayAction.php(89): RutubeBridge->collectData()
#17 bridges/RutubeBridge.php(114): RutubeBridge->getVideosFromReduxState()
#18 bridges/RutubeBridge.php(84): getContents()
#19 lib/contents.php(90): CurlHttpClient->request()
#20 lib/http.php(165)
Context
em92