diff --git a/lnbits/extensions/cashu/views.py b/lnbits/extensions/cashu/views.py
index 0b851c70a..0de791c40 100644
--- a/lnbits/extensions/cashu/views.py
+++ b/lnbits/extensions/cashu/views.py
@@ -16,7 +16,10 @@ templates = Jinja2Templates(directory="templates")
 
 
 @cashu_ext.get("/", response_class=HTMLResponse)
-async def index(request: Request, user: User = Depends(check_user_exists)):
+async def index(
+    request: Request,
+    user: User = Depends(check_user_exists),  # type: ignore
+):
     return cashu_renderer().TemplateResponse(
         "cashu/index.html", {"request": request, "user": user.dict()}
     )
@@ -36,6 +39,10 @@ async def wallet(request: Request, mint_id: str):
 @cashu_ext.get("/mint/{mintID}")
 async def cashu(request: Request, mintID):
     cashu = await get_cashu(mintID)
+    if not cashu:
+        raise HTTPException(
+            status_code=HTTPStatus.NOT_FOUND, detail="TPoS does not exist."
+        )
     return cashu_renderer().TemplateResponse(
         "cashu/mint.html",
         {"request": request, "mint_name": cashu.name, "mint_id": mintID},
diff --git a/lnbits/extensions/cashu/views_api.py b/lnbits/extensions/cashu/views_api.py
index 3cbd84e66..4edd92294 100644
--- a/lnbits/extensions/cashu/views_api.py
+++ b/lnbits/extensions/cashu/views_api.py
@@ -56,20 +56,25 @@ LIGHTNING = True
 
 @cashu_ext.get("/api/v1/mints", status_code=HTTPStatus.OK)
 async def api_cashus(
-    all_wallets: bool = Query(False), wallet: WalletTypeInfo = Depends(get_key_type)
+    all_wallets: bool = Query(False), wallet: WalletTypeInfo = Depends(get_key_type)  # type: ignore
 ):
     """
     Get all mints of this wallet.
     """
     wallet_ids = [wallet.wallet.id]
     if all_wallets:
-        wallet_ids = (await get_user(wallet.wallet.user)).wallet_ids
+        user = await get_user(wallet.wallet.user)
+        if user:
+            wallet_ids = user.wallet_ids
 
     return [cashu.dict() for cashu in await get_cashus(wallet_ids)]
 
 
 @cashu_ext.post("/api/v1/mints", status_code=HTTPStatus.CREATED)
-async def api_cashu_create(data: Cashu, wallet: WalletTypeInfo = Depends(get_key_type)):
+async def api_cashu_create(
+    data: Cashu,
+    wallet: WalletTypeInfo = Depends(get_key_type),  # type: ignore
+):
     """
     Create a new mint for this wallet.
     """
@@ -86,7 +91,7 @@ async def api_cashu_create(data: Cashu, wallet: WalletTypeInfo = Depends(get_key
 
 @cashu_ext.delete("/api/v1/mints/{cashu_id}")
 async def api_cashu_delete(
-    cashu_id: str, wallet: WalletTypeInfo = Depends(require_admin_key)
+    cashu_id: str, wallet: WalletTypeInfo = Depends(require_admin_key)  # type: ignore
 ):
     """
     Delete an existing cashu mint.