diff --git a/.vitepress/config.ts b/.vitepress/config.ts
index a43ca430e..ed7362e46 100644
--- a/.vitepress/config.ts
+++ b/.vitepress/config.ts
@@ -280,7 +280,6 @@ function sidebarHome() {
               text: "EVM",
               collapsed: true,
               items: [
-                { text: "Omni Octane EVM", link: "/tutorials/octane-evm" },
                 { text: "BeaconKit EVM", link: "/tutorials/beaconkit" },
                 {
                   text: "Artela EVM++",
diff --git a/guides/full-node.md b/guides/full-node.md
index 517f8e92d..8b3dea3dd 100644
--- a/guides/full-node.md
+++ b/guides/full-node.md
@@ -82,7 +82,7 @@ After starting your full node, you should see output similar to:
 This output indicates that your full node is successfully connecting to the network and processing blocks.
 
 :::tip
-If your rollup uses EVM as an execution layar and you see an error like `datadir already used by another process`, it means you have to remove all the state from rollup data directory (`/root/.yourrollup_fn/data/`) and specify a different data directory for the EVM client.
+If your rollup uses EVM as an execution layar and you see an error like `datadir already used by another process`, it means you have to remove all the state from rollup data directory (`/root/.yourrollup_fn/data/`) and specify a different data directory for the EVM client. Preferrably to run a full node on a different machine (or using Docker), as some EVM clients does not have a configurable data directory.
 :::
 
 
diff --git a/tutorials/artela-evm-plus-plus.md b/tutorials/artela-evm-plus-plus.md
index 06c60c508..4f180aa9d 100644
--- a/tutorials/artela-evm-plus-plus.md
+++ b/tutorials/artela-evm-plus-plus.md
@@ -106,6 +106,7 @@ When you are following the Contract interaction tutorial, you need to make the f
 1. Use https://github.com/artela-network/gm-portal.git instead of the original `gm-portal` repo.
 2. Use the private key you obtained from the previous step in this tutorial instead of the one used in the Contract interaction tutorial.
 3. The contract address should be `0x9fcEbD70654D360b41ccD123dADAAad6ce13C788` instead of the one starts with `0x18D...`.
+4. When adding a new network in MetaMask, use chain ID `11820` for connecting to the local rollup node.
 :::
 
 👉 [Quick Start for Aspect on EVM++](https://docs.artela.network/develop/get-started/dev-aspect): Try your first [Aspect](https://docs.artela.network/develop/core-concepts/aspect-programming) with Artela rollup node.