diff --git a/acorus.yaml b/acorus.yaml
index 43e4d50..e31732b 100644
--- a/acorus.yaml
+++ b/acorus.yaml
@@ -45,16 +45,25 @@ rpcs:
 #    header_buffer_size: 20
 #    contracts:
 #    event_contracts:
-  - rpc_url: 'https://testnet-rpc.zkfair.io'
-    chain_id: 43851
-    start_block: 2377471
-    l1_chain_id: 11155111
-    is_mainnet: false
-    l1_pool_contract: ""
-    l2_pool_contract: ""
-    header_buffer_size: 20
-    contracts:
-    event_contracts:
+#  - rpc_url: 'https://testnet-rpc.zkfair.io'
+#    chain_id: 43851
+#    start_block: 2377471
+#    l1_chain_id: 11155111
+#    is_mainnet: false
+#    l1_pool_contract: ""
+#    l2_pool_contract: ""
+#    header_buffer_size: 20
+#    contracts:
+#    event_contracts:- rpc_url: 'https://testnet-rpc.zkfair.io'
+#    chain_id: 43851
+#    start_block: 2377471
+#    l1_chain_id: 11155111
+#    is_mainnet: false
+#    l1_pool_contract: ""
+#    l2_pool_contract: ""
+#    header_buffer_size: 20
+#    contracts:
+#    event_contracts:
 
   #  - rpc_url: ''
   #    chain_id: 169
diff --git a/synchronizer/node/client.go b/synchronizer/node/client.go
index 54cf668..1cfe13d 100644
--- a/synchronizer/node/client.go
+++ b/synchronizer/node/client.go
@@ -169,9 +169,9 @@ func (c *clnt) BlockHeadersByRange(startHeight, endHeight *big.Int, chainId uint
 	ctxwt, cancel := context.WithTimeout(context.Background(), defaultRequestTimeout)
 	defer cancel()
 
-	if chainId == uint(global_const.PolygonChainId) ||
-		chainId == uint(global_const.PolygonSepoliaChainId) ||
-		chainId == uint(global_const.ZkFairSepoliaChainId) ||
+	//chainId == uint(global_const.PolygonChainId) ||
+	//	chainId == uint(global_const.PolygonSepoliaChainId) ||
+	if chainId == uint(global_const.ZkFairSepoliaChainId) ||
 		chainId == uint(global_const.ZkFairChainId) {
 		groupSize := 100
 		var wg sync.WaitGroup
@@ -300,9 +300,9 @@ func (c *clnt) FilterLogs(query ethereum.FilterQuery, chainId uint) (Logs, error
 	defer cancel()
 	//resultHeader := new(types.Header)
 	//resultLogs := make([]types.Log, 0)
-	if chainId == uint(global_const.PolygonChainId) ||
-		chainId == uint(global_const.PolygonSepoliaChainId) ||
-		chainId == uint(global_const.ZkFairSepoliaChainId) ||
+	//chainId == uint(global_const.PolygonChainId) ||
+	//	chainId == uint(global_const.PolygonSepoliaChainId) ||
+	if chainId == uint(global_const.ZkFairSepoliaChainId) ||
 		chainId == uint(global_const.ZkFairChainId) {
 
 		batchElems[0].Error = c.rpc.CallContext(ctxwt, &header, batchElems[0].Method, toBlockNumArg(query.ToBlock), false)