Error log bgp-peer

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Hello,

I found error logs saying about bgp-peer

[2019-11-06 14:13:57] production.ERROR: Call to a member function toSnmpIndex() on null {"exception":"[object] (Symfony\\Component\\Debug\\Exception\\FatalThrowableError(code: 0): Call to a member function toSnmpIndex() on null at /opt/services/monitoring/librenms/includes/polling/bgp-peers.inc.php:273)
[stacktrace]
#0 /opt/services/monitoring/librenms/includes/polling/functions.inc.php(309): include()
#1 /opt/services/monitoring/librenms/poller.php(173): poll_device(Array, false)
#2 {main}
"}

What could it be possible to make issue? or unable to get info from device?

Thank you.

there is another error, i found in log

[2019-11-08 18:58:34] production.ERROR: DateTimeZone::__construct(): Unknown or bad timezone (GMT/UTC) {"exception":"[object] (Exception(code: 0): DateTimeZone::__construct(): Unknown or bad timezone (GMT/UTC) at /opt/services/monitoring/librenms/app/Http/Controllers/Table/GraylogController.php:46)
[stacktrace]
#0 /opt/services/monitoring/librenms/app/Http/Controllers/Table/GraylogController.php(46): DateTimeZone->__construct('GMT/UTC')
#1 [internal function]: App\\Http\\Controllers\\Table\\GraylogController->__construct()
#2 /opt/services/monitoring/librenms/vendor/laravel/framework/src/Illuminate/Container/Container.php(827): ReflectionClass->newInstanceArgs(Array)
#3 /opt/services/monitoring/librenms/vendor/laravel/framework/src/Illuminate/Container/Container.php(667): Illuminate\\Container\\Container->build('App\\\\Http\\\\Contro...')
#4 /opt/services/monitoring/librenms/vendor/laravel/framework/src/Illuminate/Container/Container.php(615): Illuminate\\Container\\Container->resolve('App\\\\Http\\\\Contro...', Array)
#5 /opt/services/monitoring/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(767): Illuminate\\Container\\Container->make('App\\\\Http\\\\Contro...', Array)
#6 /opt/services/monitoring/librenms/vendor/laravel/framework/src/Illuminate/Routing/Route.php(233): Illuminate\\Foundation\\Application->make('App\\\\Http\\\\Contro...')
#7 /opt/services/monitoring/librenms/vendor/laravel/framework/src/Illuminate/Routing/Route.php(833): Illuminate\\Routing\\Route->getController()
#8 /opt/services/monitoring/librenms/vendor/laravel/framework/src/Illuminate/Routing/Route.php(794): Illuminate\\Routing\\Route->controllerMiddleware()
#9 /opt/services/monitoring/librenms/vendor/laravel/framework/src/Illuminate/Routing/Router.php(693): Illuminate\\Routing\\Route->gatherMiddleware()
#10 /opt/services/monitoring/librenms/vendor/laravel/framework/src/Illuminate/Routing/Router.php(673): Illuminate\\Routing\\Router->gatherRouteMiddleware(Object(Illuminate\\Routing\\Route))
#11 /opt/services/monitoring/librenms/vendor/laravel/framework/src/Illuminate/Routing/Router.php(657): Illuminate\\Routing\\Router->runRouteWithinStack(Object(Illuminate\\Routing\\Route), Object(Illuminate\\Http\\Request))
#12 /opt/services/monitoring/librenms/vendor/laravel/framework/src/Illuminate/Routing/Router.php(623): Illuminate\\Routing\\Router->runRoute(Object(Illuminate\\Http\\Request), Object(Illuminate\\Routing\\Route))
#13 /opt/services/monitoring/librenms/vendor/laravel/framework/src/Illuminate/Routing/Router.php(612): Illuminate\\Routing\\Router->dispatchToRoute(Object(Illuminate\\Http\\Request))
#14 /opt/services/monitoring/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(176): Illuminate\\Routing\\Router->dispatch(Object(Illuminate\\Http\\Request))
#15 /opt/services/monitoring/librenms/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(30): Illuminate\\Foundation\\Http\\Kernel->Illuminate\\Foundation\\Http\\{closure}(Object(Illuminate\\Http\\Request))
#16 /opt/services/monitoring/librenms/vendor/fideloper/proxy/src/TrustProxies.php(57): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#17 /opt/services/monitoring/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(163): Fideloper\\Proxy\\TrustProxies->handle(Object(Illuminate\\Http\\Request), Object(Closure))
#18 /opt/services/monitoring/librenms/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))
#19 /opt/services/monitoring/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(21): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#20 /opt/services/monitoring/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(163): Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest->handle(Object(Illuminate\\Http\\Request), Object(Closure))
#21 /opt/services/monitoring/librenms/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))
#22 /opt/services/monitoring/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(21): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#23 /opt/services/monitoring/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(163): Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest->handle(Object(Illuminate\\Http\\Request), Object(Closure))
#24 /opt/services/monitoring/librenms/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))
#25 /opt/services/monitoring/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/ValidatePostSize.php(27): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#26 /opt/services/monitoring/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(163): Illuminate\\Foundation\\Http\\Middleware\\ValidatePostSize->handle(Object(Illuminate\\Http\\Request), Object(Closure))
#27 /opt/services/monitoring/librenms/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))
#28 /opt/services/monitoring/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/CheckForMaintenanceMode.php(62): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#29 /opt/services/monitoring/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(163): Illuminate\\Foundation\\Http\\Middleware\\CheckForMaintenanceMode->handle(Object(Illuminate\\Http\\Request), Object(Closure))
#30 /opt/services/monitoring/librenms/vendor/laravel/framework/src/Illuminate/Routing/Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))
#31 /opt/services/monitoring/librenms/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(104): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#32 /opt/services/monitoring/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(151): Illuminate\\Pipeline\\Pipeline->then(Object(Closure))
#33 /opt/services/monitoring/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(116): Illuminate\\Foundation\\Http\\Kernel->sendRequestThroughRouter(Object(Illuminate\\Http\\Request))
#34 /opt/services/monitoring/librenms/html/index.php(53): Illuminate\\Foundation\\Http\\Kernel->handle(Object(Illuminate\\Http\\Request))
#35 {main}