diff --git a/bin/light_backtask/config/nets.json b/bin/light_backtask/config/nets.json
deleted file mode 100644
index 750837f8..00000000
--- a/bin/light_backtask/config/nets.json
+++ /dev/null
@@ -1,3 +0,0 @@
-[
-  13473
-]
diff --git a/bin/light_backtask/config/nets.json b/bin/light_backtask/config/nets.json
new file mode 120000
index 00000000..73809673
--- /dev/null
+++ b/bin/light_backtask/config/nets.json
@@ -0,0 +1 @@
+../../backtask/config/nets.json
\ No newline at end of file
diff --git a/bin/light_backtask/config/nets/13473/contract.json b/bin/light_backtask/config/nets/13473/contract.json
deleted file mode 120000
index 06c5c70d..00000000
--- a/bin/light_backtask/config/nets/13473/contract.json
+++ /dev/null
@@ -1 +0,0 @@
-../../../../../third_party/contracts-imtbl/out/imtbl_test_dev.json
\ No newline at end of file
diff --git a/server/light_backtask/task/contribution.go b/server/light_backtask/task/contribution.go
index 89cb95ae..91d5978a 100644
--- a/server/light_backtask/task/contribution.go
+++ b/server/light_backtask/task/contribution.go
@@ -3,6 +3,7 @@ package task
 import (
 	"q5"
 	"f5"
+	"mt"
 	"jccommon"
 	"main/constant"
 	"time"
@@ -10,10 +11,25 @@ import (
 )
 
 type contribution struct {
-
+	lockMetas []*mt.Contract
 }
 
 func (this* contribution) init() {
+	this.lockMetas = []*mt.Contract{}
+	mt.Table.Contract.Traverse(func (ele *mt.Contract) bool {
+		if ele.GetName() == jccommon.CONTRACT_NAME_NFTLock {
+			q5.AppendSlice(&this.lockMetas, ele)
+			f5.GetSysLog().Info("task.contribution.init load lockMetas net_id:%d name:%s contract_address:%s",
+				ele.GetNetId(),
+				ele.GetName(),
+				ele.GetAddress())
+		}
+		return true
+	})
+	if len(this.lockMetas) <= 0 {
+		panic("task.contribution.init lockMetas is empty")
+		return
+	}
 	go this.calc()
 }