diff --git a/submodules/TelegramCore/Sources/Account/Account.swift b/submodules/TelegramCore/Sources/Account/Account.swift
index e5f385165a..51a5d7bd18 100644
--- a/submodules/TelegramCore/Sources/Account/Account.swift
+++ b/submodules/TelegramCore/Sources/Account/Account.swift
@@ -1524,7 +1524,10 @@ public func standaloneStateManager(
                                 |> map { network -> AccountStateManager? in
                                     Logger.shared.log("StandaloneStateManager", "received network")
                                     
-                                    postbox.mediaBox.fetchResource = { resource, intervals, parameters -> Signal<MediaResourceDataFetchResult, MediaResourceDataFetchError> in
+                                    postbox.mediaBox.fetchResource = { [weak postbox] resource, intervals, parameters -> Signal<MediaResourceDataFetchResult, MediaResourceDataFetchError> in
+                                        guard let postbox else {
+                                            return .never()
+                                        }
                                         if let result = auxiliaryMethods.fetchResource(
                                             postbox,
                                             resource,
diff --git a/submodules/TelegramCore/Sources/Network/NetworkStatsContext.swift b/submodules/TelegramCore/Sources/Network/NetworkStatsContext.swift
index 21b656fed5..9b23e2aafa 100644
--- a/submodules/TelegramCore/Sources/Network/NetworkStatsContext.swift
+++ b/submodules/TelegramCore/Sources/Network/NetworkStatsContext.swift
@@ -50,11 +50,11 @@ final class NetworkStatsContext {
     
     private final class Impl {
         let queue: Queue
-        let postbox: Postbox
+        weak var postbox: Postbox?
         
         var averageTargetStats: [TargetKey: AverageStats] = [:]
         
-        init(queue: Queue, postbox: Postbox) {
+        init(queue: Queue, postbox: Postbox?) {
             self.queue = queue
             self.postbox = postbox
         }
@@ -86,12 +86,14 @@ final class NetworkStatsContext {
             var removeKeys: [TargetKey] = []
             for (targetKey, averageStats) in self.averageTargetStats {
                 if averageStats.count >= 1000 || averageStats.size >= 4 * 1024 * 1024 {
-                    addAppLogEvent(postbox: self.postbox, type: "download", data: .dictionary([
-                        "n": .number(Double(targetKey.networkType.rawValue)),
-                        "d": .number(Double(targetKey.datacenterId)),
-                        "b": .number(averageStats.networkBps / Double(averageStats.count)),
-                        "nd": .number(averageStats.networkDelay / Double(averageStats.count))
-                    ]))
+                    if let postbox = self.postbox {
+                        addAppLogEvent(postbox: postbox, type: "download", data: .dictionary([
+                            "n": .number(Double(targetKey.networkType.rawValue)),
+                            "d": .number(Double(targetKey.datacenterId)),
+                            "b": .number(averageStats.networkBps / Double(averageStats.count)),
+                            "nd": .number(averageStats.networkDelay / Double(averageStats.count))
+                        ]))
+                    }
                     removeKeys.append(targetKey)
                 }
             }
@@ -109,7 +111,7 @@ final class NetworkStatsContext {
     init(postbox: Postbox) {
         let queue = NetworkStatsContext.sharedQueue
         self.queue = queue
-        self.impl = QueueLocalObject(queue: queue, generate: {
+        self.impl = QueueLocalObject(queue: queue, generate: { [weak postbox] in
             return Impl(queue: queue, postbox: postbox)
         })
     }