When trying to go into live trading with my options algorithm using my Interactive Brokers account I get this error:Algorithm.AddSecurity(): System.Exception: The maximum number of concurrent market data subscriptions was exceeded (100).Please reduce the number of symbols requested or increase the limit using Settings.DataSubscriptionLimit.
at QuantConnect.Lean.Engine.DataFeeds.DataManager.SubscriptionManagerGetOrAdd (QuantConnect.Data.SubscriptionDataConfig newConfig) [0x000c0] in <b55bc169045640eb84dcb65d4f356e71>:0
at QuantConnect.Lean.Engine.DataFeeds.DataManager.Add (QuantConnect.Symbol symbol, QuantConnect.Resolution resolution, System.Boolean fillForward, System.Boolean extendedMarketHours, System.Boolean isFilteredSubscription, System.Boolean isInternalFeed, System.Boolean isCustomData, System.Collections.Generic.List`1[T] subscriptionDataTypes) [0x001c5] in <b55bc169045640eb84dcb65d4f356e71>:0
at QuantConnect.Algorithm.QCAlgorithm.AddSecurity (QuantConnect.SecurityType securityType, System.String symbol, QuantConnect.Resolution resolution, System.String market, System.Boolean fillDataForward, System.Decimal leverage, System.Boolean extendedMarketHours) [0x000a6] in <382c47ee38da41b38e81f33184b96164>:0 During the algorithm initialization, the following exception has occurred: System.NullReferenceException: Object reference not set to an instance of an object
at QuantConnect.Algorithm.QCAlgorithm.ConfigureUnderlyingSecurity (QuantConnect.Securities.Security security) [0x00001] in <382c47ee38da41b38e81f33184b96164>:0
at QuantConnect.Algorithm.QCAlgorithm.OnEndOfTimeStep () [0x0017f] in <382c47ee38da41b38e81f33184b96164>:0
at (wrapper remoting-invoke-with-check) QuantConnect.Algorithm.QCAlgorithm:OnEndOfTimeStep ()
at QuantConnect.Algorithm.QCAlgorithm.PostInitialize () [0x00098] in <382c47ee38da41b38e81f33184b96164>:0
at QuantConnect.AlgorithmFactory.Python.Wrappers.AlgorithmPythonWrapper.PostInitialize () [0x00001] in <550d8d4778a8426b99f48f7db8e3b65b>:0
at QuantConnect.Lean.Engine.Setup.BrokerageSetupHandler.Setup (QuantConnect.Interfaces.IAlgorithm algorithm, QuantConnect.Interfaces.IBrokerage brokerage, QuantConnect.Packets.AlgorithmNodePacket job, QuantConnect.Lean.Engine.Results.IResultHandler resultHandler, QuantConnect.Lean.Engine.TransactionHandlers.ITransactionHandler transactionHandler, QuantConnect.Lean.Engine.RealTime.IRealTimeHandler realTimeHandler) [0x00580] in <b55bc169045640eb84dcb65d4f356e71>:0 Object reference not set to an instance of an object

I'd like to trade around 300 symbols. How exactly can I increase that limit?

Kind regards,

Christian