diff --git a/external/3rd/library/soePlatform/ChatAPI/projects/ChatAPI/ChatAPICore.cpp b/external/3rd/library/soePlatform/ChatAPI/projects/ChatAPI/ChatAPICore.cpp
index e1d79635..74c02624 100644
--- a/external/3rd/library/soePlatform/ChatAPI/projects/ChatAPI/ChatAPICore.cpp
+++ b/external/3rd/library/soePlatform/ChatAPI/projects/ChatAPI/ChatAPICore.cpp
@@ -1875,11 +1875,18 @@ void ChatAPICore::responseCallback(short type, ByteStream::ReadIterator &iter)
 		{
 			MKickRoom M(iter);
 			ChatRoomCore *destRoomCore = getRoomCore(M.getRoomID());
+
+			if (!destRoomCore) {
+				_chatdebug_("ChatAPI:destroomCore is null!");
+				break;
+			}
+
 			if (!M.getSrcAvatar() || !M.getDestAvatar())
 			{
 				_chatdebug_("ChatAPI:BadData: MESSAGE_KICKROOM: M.getSrcAvatar()=%p, M.getDestAvatar()=%p\n", M.getSrcAvatar(), M.getDestAvatar());
 				break; 
 			}
+
 			ChatAvatar *destAvatar = M.getDestAvatar()->getNewChatAvatar();
 			ChatAvatar *srcAvatar = M.getSrcAvatar()->getNewChatAvatar();
 			ChatAvatarCore *kickedAvatar = destRoomCore ? destRoomCore->removeAvatar(destAvatar->getAvatarID()) : NULL;
diff --git a/external/3rd/library/soePlatform/ChatAPI/utils/UdpLibrary/UdpMisc.cpp b/external/3rd/library/soePlatform/ChatAPI/utils/UdpLibrary/UdpMisc.cpp
index a88ab603..754343fe 100644
--- a/external/3rd/library/soePlatform/ChatAPI/utils/UdpLibrary/UdpMisc.cpp
+++ b/external/3rd/library/soePlatform/ChatAPI/utils/UdpLibrary/UdpMisc.cpp
@@ -87,10 +87,10 @@ int UdpMisc::Crc32(const void *buffer, int bufferLen, int encryptValue)
     0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D};
 
     int crc = 0xffffffff;
-    crc = (crc >> (8 & 0x00FFFFFFL)) ^ crc32_table[(crc ^ (encryptValue & 0xff)) & 0x000000FFL];
-    crc = (crc >> (8 & 0x00FFFFFFL)) ^ crc32_table[(crc ^ ((encryptValue >> 8) & 0xff)) & 0x000000FFL];
-    crc = (crc >> (8 & 0x00FFFFFFL)) ^ crc32_table[(crc ^ ((encryptValue >> 16) & 0xff)) & 0x000000FFL];
-    crc = (crc >> (8 & 0x00FFFFFFL)) ^ crc32_table[(crc ^ ((encryptValue >> 24) & 0xff)) & 0x000000FFL];
+    crc = (crc >> 8) & 0x00FFFFFFL) ^ crc32_table[(crc ^ (encryptValue & 0xff)) & 0x000000FFL];
+    crc = (crc >> 8) & 0x00FFFFFFL) ^ crc32_table[(crc ^ ((encryptValue >> 8) & 0xff)) & 0x000000FFL];
+    crc = (crc >> 8) & 0x00FFFFFFL) ^ crc32_table[(crc ^ ((encryptValue >> 16) & 0xff)) & 0x000000FFL];
+    crc = (crc >> 8) & 0x00FFFFFFL) ^ crc32_table[(crc ^ ((encryptValue >> 24) & 0xff)) & 0x000000FFL];
 
     const udp_uchar *bufPtr = (const udp_uchar *)buffer;
     const udp_uchar *endPtr = (const udp_uchar *)buffer + bufferLen;