diff --git a/frontend/src/app/stickerpack/[name]/page.tsx b/frontend/src/app/stickerpack/[name]/page.tsx
index 6dbab2f..559ecb3 100644
--- a/frontend/src/app/stickerpack/[name]/page.tsx
+++ b/frontend/src/app/stickerpack/[name]/page.tsx
@@ -81,18 +81,23 @@ export default function StickerPackDetail() {
           file_id: selectedStickerForMove,
           user_id: stickerPack.user_id
         });
+
         if (response.data.success) {
+          // Refresh the sticker pack data after successful move
+          const updatedPackResponse = await axios.get(`http://localhost:8000/api/stickerpack/${name}`);
+          setStickerPack(updatedPackResponse.data);
           setSelectedStickerForMove(null);
-          setStickerPacksForMove([]);
-          const updatedPack = await axios.get(`http://localhost:8000/api/stickerpack/${stickerPack.name}`);
-          setStickerPack(updatedPack.data);
-        } else {
-          console.error(`Error moving sticker to pack: ${destinationPack.name}`, response.data.error);
         }
       } catch (error) {
+        if (axios.isAxiosError(error) && error.response) {
+          alert(`Error moving sticker: ${error.response.data.error}`);
+        } else {
+          alert('An unexpected error occurred while moving the sticker');
+        }
         console.error(`Error moving sticker to pack: ${destinationPack.name}`, error);
       }
     }
+    setSelectedStickerForMove(null);
   };
 
   return (
diff --git a/src/telegram_stickers_organizer/api/sticker_controller.py b/src/telegram_stickers_organizer/api/sticker_controller.py
index 071d0a5..0af16f5 100644
--- a/src/telegram_stickers_organizer/api/sticker_controller.py
+++ b/src/telegram_stickers_organizer/api/sticker_controller.py
@@ -6,11 +6,10 @@
 )
 from telegram_stickers_organizer.utils.sticker_helpers import (
     get_sticker_set,
-    add_stickers_to_set,
 )
 from telegram_stickers_organizer.dispatcher import bot
 from telegram_stickers_organizer.interactors.download_sticker import download_sticker
-import logging
+from ..interactors.move_sticker_to_another_set import move_sticker_to_another_set
 
 
 async def get_stickerpacks(request):
@@ -80,7 +79,16 @@ async def get_stickerpack_preview(request):
 
 async def get_all_sticker_sets(request):
     sticker_sets = db_get_all_sticker_sets()
-    return web.json_response(sticker_sets)
+
+    response_data = [
+        {
+            "user_id": sticker_set["user_id"],
+            "name": sticker_set["set_name"],
+            "title": sticker_set["title"],
+        }
+        for sticker_set in sticker_sets
+    ]
+    return web.json_response(response_data)
 
 
 async def delete_sticker_set(request):
@@ -102,35 +110,20 @@ async def move_sticker(request):
     file_id = data.get("file_id")
     user_id = data.get("user_id")
 
-    if not all([source_pack, destination_pack, file_id]):
+    if not all([source_pack, destination_pack, file_id, user_id]):
         return web.json_response(
             {
                 "success": False,
-                "error": "source_pack, destination_pack, and file_id are required",
+                "error": "source_pack, destination_pack, file_id, and user_id are required",
             },
             status=400,
         )
 
-    try:
-        # Get the source sticker set
-        source_set = await get_sticker_set(source_pack)
-
-        # Find the sticker with the given file_id in the source set
-        sticker = next((s for s in source_set.stickers if s.file_id == file_id), None)
-
-        if not sticker:
-            return web.json_response(
-                {"success": False, "error": "Sticker not found in the source pack"},
-                status=404,
-            )
-
-        # Add the sticker to the destination pack
-        await add_stickers_to_set(user_id, destination_pack, [sticker])
-
-        # Remove the sticker from the source pack
-        await bot.delete_sticker_from_set(file_id)
+    success, error = await move_sticker_to_another_set(
+        source_pack, destination_pack, file_id, user_id
+    )
 
+    if success:
         return web.json_response({"success": True})
-    except Exception as e:
-        logging.error(f"Error moving sticker: {e}")
-        return web.json_response({"success": False, "error": str(e)}, status=500)
+    else:
+        return web.json_response({"success": False, "error": error}, status=400)
diff --git a/src/telegram_stickers_organizer/interactors/move_sticker_to_another_set.py b/src/telegram_stickers_organizer/interactors/move_sticker_to_another_set.py
new file mode 100644
index 0000000..5e48dee
--- /dev/null
+++ b/src/telegram_stickers_organizer/interactors/move_sticker_to_another_set.py
@@ -0,0 +1,36 @@
+from ..utils.sticker_helpers import get_sticker_set, add_stickers_to_set
+from ..dispatcher import bot
+from ..constants import MAX_STICKERS_IN_STICKERSET
+import logging
+
+
+async def move_sticker_to_another_set(
+    source_pack: str, destination_pack: str, file_id: str, user_id: int
+):
+    try:
+        # Get the source sticker set
+        source_set = await get_sticker_set(source_pack)
+
+        # Find the sticker with the given file_id in the source set
+        sticker = next((s for s in source_set.stickers if s.file_id == file_id), None)
+
+        if not sticker:
+            return False, "Sticker not found in the source pack"
+
+        # Get the destination sticker set
+        destination_set = await get_sticker_set(destination_pack)
+
+        # Check if the destination pack is full
+        if len(destination_set.stickers) >= MAX_STICKERS_IN_STICKERSET:
+            return False, "Destination pack is full (maximum 120 stickers)"
+
+        # Add the sticker to the destination pack
+        await add_stickers_to_set(user_id, destination_pack, [sticker])
+
+        # Remove the sticker from the source pack
+        await bot.delete_sticker_from_set(file_id)
+
+        return True, None
+    except Exception as e:
+        logging.error(f"Error moving sticker: {e}")
+        return False, str(e)