diff --git a/src/entry/Maat_api.cpp b/src/entry/Maat_api.cpp
index c9b75f2..583b2b2 100644
--- a/src/entry/Maat_api.cpp
+++ b/src/entry/Maat_api.cpp
@@ -1934,8 +1934,13 @@ void Maat_stream_scan_string_end(stream_para_t* stream_para)
 {
 	struct _stream_para_t* sp=(struct _stream_para_t*)(*stream_para);
 	struct Maat_scanner_t* scanner=sp->feather->scanner;
-	struct Maat_table_runtime* table_rt=scanner->table_rt[sp->table_id];
-	alignment_int64_array_add(table_rt->stream_num, sp->thread_num, -1);
+	struct Maat_table_runtime* table_rt=NULL;
+	if(scanner!=NULL)
+	{
+		table_rt=scanner->table_rt[sp->table_id];
+		alignment_int64_array_add(table_rt->stream_num, sp->thread_num, -1);
+
+	}
 	if(sp->rs_stream_para!=NULL)
 	{
 		if(scanner!=NULL&&sp->version>=sp->feather->last_full_version)
diff --git a/src/entry/Maat_rule.cpp b/src/entry/Maat_rule.cpp
index 85f7f23..e2561e0 100644
--- a/src/entry/Maat_rule.cpp
+++ b/src/entry/Maat_rule.cpp
@@ -32,7 +32,7 @@
 #include "stream_fuzzy_hash.h"
 #include "gram_index_engine.h"
 
-int MAAT_FRAME_VERSION_2_6_20190110=1;
+int MAAT_FRAME_VERSION_2_6_20190118=1;
 
 const char* CHARSET_STRING[]={"NONE","gbk","big5","unicode","utf8","bin",
 							"unicode_ascii_esc","unicode_ascii_aligned","unicode_ncr_dec","unicode_ncr_hex","url_encode_gb2312","url_encode_utf8",""};
@@ -2474,8 +2474,7 @@ void update_group_rule(struct Maat_table_desc* table,const char* table_line,stru
 											&(db_group_rule.compile_id),
 											&(db_group_rule.is_valid),
 											&(db_group_rule.not_flag));
-	if((ret!=3&&ret!=4) || 
-		(db_group_rule.not_flag!=0&&db_group_rule.not_flag!=1))
+	if(ret!=3&&ret!=4)
 	{
 		MESA_handle_runtime_log(logger,RLOG_LV_INFO,maat_module ,
 							"update error,invalid format of group table %s:%s",
@@ -2483,6 +2482,10 @@ void update_group_rule(struct Maat_table_desc* table,const char* table_line,stru
 		table->udpate_err_cnt++;
 		return;
 	}
+	if(db_group_rule.not_flag!=1)//compatible to old format that 4th column is op_time
+	{
+		db_group_rule.not_flag=0;
+	}
 	if(db_group_rule.is_valid==FALSE)
 	{
 		del_group_rule(table, &db_group_rule, scanner, logger);