Getting error while calling below API endpoint on OSS: api/v1/scheduler/sources/discover_schema

"message": "Internal Server Error: Cannot invoke \"java.util.UUID.toString()\" because the return value of \"io.airbyte.config.SourceConnection.getSourceId()\" is null",
    "exceptionClassName": "java.lang.NullPointerException",
    "exceptionStack": [
        "java.lang.NullPointerException: Cannot invoke \"java.util.UUID.toString()\" because the return value of \"io.airbyte.config.SourceConnection.getSourceId()\" is null",
        "\tat io.airbyte.commons.server.scheduler.DefaultSynchronousSchedulerClient.createDiscoverSchemaJob(DefaultSynchronousSchedulerClient.java:169)",
        "\tat io.airbyte.commons.server.handlers.SchedulerHandler.discoverSchemaForSourceFromSourceCreate(SchedulerHandler.java:489)",
        "\tat io.airbyte.server.apis.SchedulerApiController.lambda$executeSourceDiscoverSchema$2(SchedulerApiController.java:57)",
        "\tat io.airbyte.server.apis.ApiHelper.execute(ApiHelper.java:26)",
        "\tat io.airbyte.server.apis.SchedulerApiController.executeSourceDiscoverSchema(SchedulerApiController.java:57)",
        "\tat io.airbyte.server.apis.$SchedulerApiController$Definition$Exec.dispatch(Unknown Source)",
        "\tat io.micronaut.context.AbstractExecutableMethodsDefinition$DispatchedExecutableMethod.invoke(AbstractExecutableMethodsDefinition.java:371)",
        "\tat io.micronaut.context.DefaultBeanContext$4.invoke(DefaultBeanContext.java:594)",
        "\tat io.micronaut.web.router.AbstractRouteMatch.execute(AbstractRouteMatch.java:303)",
        "\tat io.micronaut.web.router.RouteMatch.execute(RouteMatch.java:111)",
        "\tat io.micronaut.http.context.ServerRequestContext.with(ServerRequestContext.java:103)",
        "\tat io.micronaut.http.server.RouteExecutor.lambda$executeRoute$14(RouteExecutor.java:659)",
        "\tat reactor.core.publisher.FluxDeferContextual.subscribe(FluxDeferContextual.java:49)",
        "\tat reactor.core.publisher.InternalFluxOperator.subscribe(InternalFluxOperator.java:62)",
        "\tat reactor.core.publisher.FluxSubscribeOn$SubscribeOnSubscriber.run(FluxSubscribeOn.java:194)",
        "\tat io.micronaut.reactive.reactor.instrument.ReactorInstrumentation.lambda$init$0(ReactorInstrumentation.java:62)",
        "\tat reactor.core.scheduler.WorkerTask.call(WorkerTask.java:84)",
        "\tat reactor.core.scheduler.WorkerTask.call(WorkerTask.java:37)",
        "\tat io.micronaut.scheduling.instrument.InvocationInstrumenterWrappedCallable.call(InvocationInstrumenterWrappedCallable.java:53)",
        "\tat java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)",
        "\tat java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)",
        "\tat java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)",
        "\tat java.base/java.lang.Thread.run(Thread.java:1589)"
    ]