diff --git a/submodules/FFMpegBinding/Sources/FFMpegSWResample.m b/submodules/FFMpegBinding/Sources/FFMpegSWResample.m
index 3afe624447..fbecf0555b 100644
--- a/submodules/FFMpegBinding/Sources/FFMpegSWResample.m
+++ b/submodules/FFMpegBinding/Sources/FFMpegSWResample.m
@@ -32,7 +32,7 @@
                                       (int)sourceSampleRate,
                                       0,
                                       NULL);
-        _ratio = MAX(1, destinationSampleRate / sourceSampleRate) * MAX(1, destinationChannelCount / sourceChannelCount) * 2;
+        _ratio = MAX(1, destinationSampleRate / MAX(sourceSampleRate, 1)) * MAX(1, destinationChannelCount / sourceChannelCount) * 2;
         swr_init(_context);
     }
     return self;
diff --git a/submodules/TelegramCore/Sources/InvitationLinks.swift b/submodules/TelegramCore/Sources/InvitationLinks.swift
index d514bdbe38..eabd3268a1 100644
--- a/submodules/TelegramCore/Sources/InvitationLinks.swift
+++ b/submodules/TelegramCore/Sources/InvitationLinks.swift
@@ -170,9 +170,9 @@ public struct ExportedInvitations : Equatable {
     public let totalCount: Int32
 }
 
-public func peerExportedInvitations(account: Account, peerId: PeerId, revoked: Bool, offsetLink: ExportedInvitation? = nil) -> Signal<ExportedInvitations?, NoError> {
+public func peerExportedInvitations(account: Account, peerId: PeerId, revoked: Bool, adminId: PeerId? = nil, offsetLink: ExportedInvitation? = nil) -> Signal<ExportedInvitations?, NoError> {
     return account.postbox.transaction { transaction -> Signal<ExportedInvitations?, NoError> in
-        if let peer = transaction.getPeer(peerId), let inputPeer = apiInputPeer(peer), let accountPeer = transaction.getPeer(account.peerId), let adminId = apiInputUser(accountPeer) {
+        if let peer = transaction.getPeer(peerId), let inputPeer = apiInputPeer(peer), let adminPeer = transaction.getPeer(adminId ?? account.peerId), let adminId = apiInputUser(adminPeer) {
             var flags: Int32 = 0
             if let _ = offsetLink {
                 flags |= (1 << 2)