From 8d768a8ea664df322678aa1aced5d066e1b5037a Mon Sep 17 00:00:00 2001
From: nakul1010 <nakul.amate@gmail.com>
Date: Mon, 4 Dec 2023 15:04:17 +0530
Subject: [PATCH] fix: change error type.

---
 crates/fee/src/lib.rs | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/crates/fee/src/lib.rs b/crates/fee/src/lib.rs
index 96523f0149..0185a1d54b 100644
--- a/crates/fee/src/lib.rs
+++ b/crates/fee/src/lib.rs
@@ -38,7 +38,7 @@ pub use pallet::*;
 use primitives::VaultId;
 use reward::RewardsApi;
 use sp_arithmetic::{traits::*, FixedPointNumber};
-use sp_runtime::{traits::AccountIdConversion, TransactionOutcome};
+use sp_runtime::{traits::AccountIdConversion, ArithmeticError, TransactionOutcome};
 use sp_std::{
     convert::{TryFrom, TryInto},
     fmt::Debug,
@@ -111,8 +111,6 @@ pub mod pallet {
         TryIntoIntError,
         /// Value exceeds the expected upper bound for storage fields in this pallet.
         AboveMaxExpectedValue,
-        /// Subtraction of the premium redeem fee from a value failed.
-        PremiumRedeemSubtractionFailed,
     }
 
     #[pallet::hooks]
@@ -439,7 +437,7 @@ impl<T: Config> Pallet<T> {
     ) -> Result<UnsignedFixedPoint<T>, DispatchError> {
         Ok(amount
             .checked_sub(&<PremiumRedeemFee<T>>::get())
-            .ok_or(Error::<T>::PremiumRedeemSubtractionFailed)?)
+            .ok_or(ArithmeticError::Underflow)?)
     }
 
     /// Calculate punishment fee for a Vault that fails to execute a redeem