diff --git a/pom.xml b/pom.xml
index 669b927..9af64fc 100644
--- a/pom.xml
+++ b/pom.xml
@@ -52,7 +52,7 @@
         <dependency>
             <groupId>it.tdlight</groupId>
             <artifactId>tdlib-session-container</artifactId>
-            <version>4.0.22</version>
+            <version>4.2.4</version>
         </dependency>
         <dependency>
             <groupId>org.openjfx</groupId>
diff --git a/src/main/java/it/cavallium/TransferServiceImpl.java b/src/main/java/it/cavallium/TransferServiceImpl.java
index 075866c..e55cf02 100644
--- a/src/main/java/it/cavallium/TransferServiceImpl.java
+++ b/src/main/java/it/cavallium/TransferServiceImpl.java
@@ -8,8 +8,6 @@ import com.google.i18n.phonenumbers.NumberParseException;
 import com.google.i18n.phonenumbers.PhoneNumberUtil;
 import com.google.i18n.phonenumbers.PhoneNumberUtil.PhoneNumberFormat;
 import com.google.i18n.phonenumbers.Phonenumber.PhoneNumber;
-import com.hazelcast.cp.internal.util.Tuple2;
-import com.hazelcast.cp.internal.util.Tuple3;
 import it.tdlight.jni.TdApi;
 import it.tdlight.jni.TdApi.AuthorizationStateClosed;
 import it.tdlight.jni.TdApi.AuthorizationStateClosing;
@@ -53,6 +51,7 @@ import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
 import reactor.core.scheduler.Scheduler;
 import reactor.core.scheduler.Schedulers;
+import reactor.util.function.Tuples;
 
 public class TransferServiceImpl implements TransferService {
 
@@ -379,11 +378,11 @@ public class TransferServiceImpl implements TransferService {
 										return Mono.empty();
 									}))
 							.collect(Collectors.toSet())
-							.map(transferDestClients -> Tuple2.of(transferSourceClients, transferDestClients));
+							.map(transferDestClients -> Tuples.of(transferSourceClients, transferDestClients));
 				})
 				.map(clientsTuple -> {
-					var sourceClients = clientsTuple.element1;
-					var destClients = clientsTuple.element2;
+					var sourceClients = clientsTuple.getT1();
+					var destClients = clientsTuple.getT2();
 					App.getLogService().append(Level.INFO, "Found source userbots: " + sourceClients.stream().map(TransferClient::toString).collect(Collectors.joining(", ")));
 					App.getLogService().append(Level.INFO, "Found destination userbots: " + destClients.stream().map(TransferClient::toString).collect(Collectors.joining(", ")));
 					var chosenClients = new HashSet<TransferClient>(sourceClients);
@@ -422,7 +421,7 @@ public class TransferServiceImpl implements TransferService {
 								return new Exception("Error while obtaining source group members: " + error.getLocalizedMessage(), error);
 							})
 							.subscribeOn(Schedulers.boundedElastic())
-							.map(members -> Tuple2.of(clients, members));
+							.map(members -> Tuples.of(clients, members));
 				})
 				// Finished getting the list of members of the source group
 
@@ -432,8 +431,8 @@ public class TransferServiceImpl implements TransferService {
 							.then(percentageConsumer.apply(10)).thenReturn(context);
 				})
 				.flatMap(context -> {
-					var clients = context.element1;
-					var unresolvedUsers = context.element2;
+					var clients = context.getT1();
+					var unresolvedUsers = context.getT2();
 					return Flux
 							.fromIterable(clients)
 							.flatMap(client -> Flux
@@ -448,7 +447,7 @@ public class TransferServiceImpl implements TransferService {
 									.collect(Collectors.toSet())
 							)
 							.last()
-							.map(resolvedUsers -> Tuple2.of(clients, resolvedUsers));
+							.map(resolvedUsers -> Tuples.of(clients, resolvedUsers));
 				})
 				// Finished resolving users
 
@@ -458,8 +457,8 @@ public class TransferServiceImpl implements TransferService {
 							.then(percentageConsumer.apply(15)).thenReturn(context);
 				})
 				.flatMap(context -> {
-					var clients = context.element1;
-					var unfilteredUsers = context.element2;
+					var clients = context.getT1();
+					var unfilteredUsers = context.getT2();
 					return Flux
 							.fromIterable(unfilteredUsers)
 							.<User>flatMap(user -> {
@@ -498,7 +497,7 @@ public class TransferServiceImpl implements TransferService {
 										.thenReturn(user);
 							})
 							.collect(Collectors.toSet())
-							.map(resolvedUsers -> Tuple3.of(clients, resolvedUsers, unfilteredUsers.size()));
+							.map(resolvedUsers -> Tuples.of(clients, resolvedUsers, unfilteredUsers.size()));
 				})
 				// Finished filtering unsuitable users
 
@@ -508,9 +507,9 @@ public class TransferServiceImpl implements TransferService {
 							.then(percentageConsumer.apply(20)).thenReturn(context);
 				})
 				.flatMap(context -> {
-					var clients = context.element1;
-					var users = context.element2;
-					var totalUsersCount = context.element3;
+					var clients = context.getT1();
+					var users = context.getT2();
+					var totalUsersCount = context.getT3();
 					var client = clients.stream().skip(ThreadLocalRandom.current().nextInt(clients.size())).findFirst().orElseThrow();
 					AtomicInteger processedUsersStats = new AtomicInteger(0);
 					return Flux
@@ -592,13 +591,13 @@ public class TransferServiceImpl implements TransferService {
 								}
 							})
 							.collect(Collectors.toSet())
-							.map(resolvedUsers -> Tuple3.of(clients, resolvedUsers, totalUsersCount));
+							.map(resolvedUsers -> Tuples.of(clients, resolvedUsers, totalUsersCount));
 				})
 				// Finished transferring users
 
 
 				.doOnNext(context -> {
-					App.getLogService().append(Level.INFO, "Users added. Added " + transferredSuccessfullyUsersStats.get() + "/" + context.element3 + " users");
+					App.getLogService().append(Level.INFO, "Users added. Added " + transferredSuccessfullyUsersStats.get() + "/" + context.getT3() + " users");
 				})
 
 				.then(percentageConsumer.apply(100))
diff --git a/src/main/java/it/cavallium/UserStatusType.java b/src/main/java/it/cavallium/UserStatusType.java
index 5b61572..2a28372 100644
--- a/src/main/java/it/cavallium/UserStatusType.java
+++ b/src/main/java/it/cavallium/UserStatusType.java
@@ -18,3 +18,26 @@ public enum UserStatusType {
 	ADD_TOO_MANY_REQUESTS,
 	UNKNOWN
 }
+
+/*
+Possible errors
+Code	Type	Description
+400	BOTS_TOO_MUCH	There are too many bots in this chat/channel
+400	BOT_GROUPS_BLOCKED	This bot can't be added to groups
+400	CHANNEL_INVALID	The provided channel is invalid
+400	CHANNEL_PRIVATE	You haven't joined this channel/supergroup
+400	CHAT_ADMIN_REQUIRED	You must be an admin in this chat to do this
+400	CHAT_INVALID	Invalid chat
+403	CHAT_WRITE_FORBIDDEN	You can't write in this chat
+400	INPUT_USER_DEACTIVATED	The specified user was deleted
+400	MSG_ID_INVALID	Invalid message ID provided
+400	USERS_TOO_MUCH	The maximum number of users has been exceeded (to create a chat, for example)
+400	USER_BANNED_IN_CHANNEL	You're banned from sending messages in supergroups/channels
+400	USER_BLOCKED	User blocked
+400	USER_BOT	Bots can only be admins in channels.
+403	USER_CHANNELS_TOO_MUCH	One of the users you tried to add is already in too many channels/supergroups
+400	USER_ID_INVALID	The provided user ID is invalid
+400	USER_KICKED	This user was kicked from this supergroup/channel
+400	USER_NOT_MUTUAL_CONTACT	The provided user is not a mutual contact
+403	USER_PRIVACY_RESTRICTED	The user's privacy settings do not allow you to do this
+ */
\ No newline at end of file
diff --git a/tdlib-session-container b/tdlib-session-container
deleted file mode 160000
index a04010d..0000000
--- a/tdlib-session-container
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit a04010d72b8c8eb4165697f07c3da685b1a88a50