diff --git a/src/background/messages/block.ts b/src/background/messages/block.ts
index 9294b03..05ae698 100644
--- a/src/background/messages/block.ts
+++ b/src/background/messages/block.ts
@@ -2,12 +2,20 @@ import type { PlasmoMessaging } from "@plasmohq/messaging"
 import { BskyClient } from "~lib/bskyClient";
 
 const handler: PlasmoMessaging.MessageHandler = async (req, res) => {
-  const { session, subjectDid }  = req.body
+  const { session, subjectDid } = req.body
   const client = BskyClient.createAgentFromSession(session)
 
-  res.send({
-    result: await client.block(subjectDid)
-  })
+  try {
+    res.send({
+      result: await client.block(subjectDid)
+    })
+  } catch (e) {
+    res.send({
+      error: {
+        message: e.message,
+      }
+    })
+  }
 }
 
 export default handler
diff --git a/src/background/messages/follow.ts b/src/background/messages/follow.ts
index cd291e1..17b8644 100644
--- a/src/background/messages/follow.ts
+++ b/src/background/messages/follow.ts
@@ -2,12 +2,20 @@ import type { PlasmoMessaging } from "@plasmohq/messaging"
 import { BskyClient } from "~lib/bskyClient";
 
 const handler: PlasmoMessaging.MessageHandler = async (req, res) => {
-  const { session, subjectDid }  = req.body
+  const { session, subjectDid } = req.body
   const client = BskyClient.createAgentFromSession(session)
 
-  res.send({
-    result: await client.follow(subjectDid)
-  })
+  try {
+    res.send({
+      result: await client.follow(subjectDid)
+    })
+  } catch (e) {
+    res.send({
+      error: {
+        message: e.message,
+      }
+    })
+  }
 }
 
 export default handler
diff --git a/src/background/messages/login.ts b/src/background/messages/login.ts
index 3833700..dc5c5d3 100644
--- a/src/background/messages/login.ts
+++ b/src/background/messages/login.ts
@@ -4,14 +4,22 @@ import { BskyClient } from "../../lib/bskyClient";
 const handler: PlasmoMessaging.MessageHandler = async (req, res) => {
   const { identifier, password }  = req.body
 
-  const agent = await BskyClient.createAgent({
-    identifier,
-    password,
-  })
+  try {
+    const agent = await BskyClient.createAgent({
+      identifier,
+      password,
+    })
 
-  res.send({
-    session: agent.session,
-  })
+    res.send({
+      session: agent.session,
+    })
+  } catch (e) {
+    res.send({
+      error: {
+        message: e.message,
+      }
+    })
+  }
 }
 
 export default handler
diff --git a/src/background/messages/searchUser.ts b/src/background/messages/searchUser.ts
index 40315b0..358787a 100644
--- a/src/background/messages/searchUser.ts
+++ b/src/background/messages/searchUser.ts
@@ -2,15 +2,23 @@ import type { PlasmoMessaging } from "@plasmohq/messaging"
 import { BskyClient } from "~lib/bskyClient";
 
 const handler: PlasmoMessaging.MessageHandler = async (req, res) => {
-  const { session, term, limit }  = req.body
+  const { session, term, limit } = req.body
   const client = BskyClient.createAgentFromSession(session)
 
-  res.send({
-    actors: await client.searchUser({
-      term,
-      limit,
+  try {
+    res.send({
+      actors: await client.searchUser({
+        term,
+        limit,
+      })
     })
-  })
+  } catch (e) {
+    res.send({
+      error: {
+        message: e.message,
+      }
+    })
+  }
 }
 
 export default handler
diff --git a/src/background/messages/unblock.ts b/src/background/messages/unblock.ts
index 166176a..ff28723 100644
--- a/src/background/messages/unblock.ts
+++ b/src/background/messages/unblock.ts
@@ -2,12 +2,20 @@ import type { PlasmoMessaging } from "@plasmohq/messaging"
 import { BskyClient } from "~lib/bskyClient";
 
 const handler: PlasmoMessaging.MessageHandler = async (req, res) => {
-  const { session, blockUri }  = req.body
+  const { session, blockUri } = req.body
   const client = BskyClient.createAgentFromSession(session)
 
-  res.send({
-    result: await client.unblock(blockUri)
-  })
+  try {
+    res.send({
+      result: await client.unblock(blockUri)
+    })
+  } catch (e) {
+    res.send({
+      error: {
+        message: e.message,
+      }
+    })
+  }
 }
 
 export default handler
diff --git a/src/background/messages/unfollow.ts b/src/background/messages/unfollow.ts
index b876ed9..a0946f6 100644
--- a/src/background/messages/unfollow.ts
+++ b/src/background/messages/unfollow.ts
@@ -2,12 +2,20 @@ import type { PlasmoMessaging } from "@plasmohq/messaging"
 import { BskyClient } from "~lib/bskyClient";
 
 const handler: PlasmoMessaging.MessageHandler = async (req, res) => {
-  const { session, followUri }  = req.body
+  const { session, followUri } = req.body
   const client = BskyClient.createAgentFromSession(session)
 
-  res.send({
-    result: await client.unfollow(followUri)
-  })
+  try {
+    res.send({
+      result: await client.unfollow(followUri)
+    })
+  } catch (e) {
+    res.send({
+      error: {
+        message: e.message,
+      }
+    })
+  }
 }
 
 export default handler
diff --git a/src/lib/bskyServiceWorkerClient.ts b/src/lib/bskyServiceWorkerClient.ts
index b825982..8957b0e 100644
--- a/src/lib/bskyServiceWorkerClient.ts
+++ b/src/lib/bskyServiceWorkerClient.ts
@@ -16,13 +16,15 @@ export class BskyServiceWorkerClient {
     password,
   }: BskyLoginParams): Promise<BskyServiceWorkerClient> {
     const client = new BskyServiceWorkerClient();
-    const { session } = await sendToBackground({
+    const { session, error } = await sendToBackground({
       name: "login",
       body: {
         identifier,
         password,
       }
     })
+    if(error) throw new Error(error.message)
+
     client.session = session
     return client;
   }
@@ -34,7 +36,7 @@ export class BskyServiceWorkerClient {
     term: string;
     limit: number;
   }) => {
-    const { actors } = await sendToBackground({
+    const { actors, error } = await sendToBackground({
       name: "searchUser",
       body: {
         session: this.session,
@@ -42,51 +44,61 @@ export class BskyServiceWorkerClient {
         limit,
       }
     })
+    if(error) throw new Error(error.message)
+
     return actors;
   };
 
   public follow = async (subjectDid: string) => {
-    const { result } = await sendToBackground({
+    const { result, error } = await sendToBackground({
       name: "follow",
       body: {
         session: this.session,
         subjectDid
       }
     })
+    if(error) throw new Error(error.message)
+
     return result;
   }
 
   public unfollow = async (followUri: string) => {
-    const { result } = await sendToBackground({
+    const { result, error } = await sendToBackground({
       name: "unfollow",
       body: {
         session: this.session,
         followUri
       }
     })
+    if(error) throw new Error(error.message)
+
     return result;
   }
 
   public block = async (subjectDid: string) => {
-    const { result } = await sendToBackground({
+    const { result, error } = await sendToBackground({
       name: "block",
       body: {
         session: this.session,
         subjectDid
       }
     })
+    if(error) throw new Error(error.message)
+
     return result;
   }
 
   public unblock = async (blockUri: string) => {
     // TODO: unblock is not working. Need to fix it.
-    const { result } = await sendToBackground({
+    const { result, error } = await sendToBackground({
       name: "unblock",
       body: {
         session: this.session,
         blockUri
       }
     })
+    if(error) throw new Error(error.message)
+
     return result;
   }
 }