fix:get msg error

pkg/rpcclient/msg.go

@@ -174,6 +174,9 @@ func (m *MessageRpcClient) GetMaxSeqs(ctx context.Context, conversationIDs []str
 	resp, err := m.Client.GetMaxSeqs(ctx, &msg.GetMaxSeqsReq{
 		ConversationIDs: conversationIDs,
 	})
+	if err != nil {
+		return nil, err
+	}
 	return resp.MaxSeqs, err
 }
 
@@ -182,6 +185,9 @@ func (m *MessageRpcClient) GetHasReadSeqs(ctx context.Context, userID string, co
 		UserID:          userID,
 		ConversationIDs: conversationIDs,
 	})
+	if err != nil {
+		return nil, err
+	}
 	return resp.MaxSeqs, err
 }
 
@@ -190,6 +196,9 @@ func (m *MessageRpcClient) GetMsgByConversationIDs(ctx context.Context, docIDs [
 		ConversationIDs: docIDs,
 		MaxSeqs:         seqs,
 	})
+	if err != nil {
+		return nil, err
+	}
 	return resp.MsgDatas, err
 }