don't use a signer for callStatic contract

src/hooks/useContract.ts

@@ -160,10 +160,10 @@ export function useSocksController(): Unisocks | null {
   ) as Unisocks | null
 }
 
-export function useV3NFTPositionManagerContract(): NonfungiblePositionManager | null {
+export function useV3NFTPositionManagerContract(withSignerIfPossible?: boolean): NonfungiblePositionManager | null {
   const { chainId } = useActiveWeb3React()
   const address = chainId ? NONFUNGIBLE_POSITION_MANAGER_ADDRESSES[chainId] : undefined
-  return useContract(address, NFTPositionManagerABI) as NonfungiblePositionManager | null
+  return useContract(address, NFTPositionManagerABI, withSignerIfPossible) as NonfungiblePositionManager | null
 }
 
 export function useV3Factory(): UniswapV3Factory | null {

src/hooks/useV3PositionFees.ts

@@ -14,7 +14,7 @@ export function useV3PositionFees(
   pool?: Pool,
   positionDetails?: PositionDetails
 ): [TokenAmount, TokenAmount] | [undefined, undefined] {
-  const positionManager = useV3NFTPositionManagerContract()
+  const positionManager = useV3NFTPositionManagerContract(false)
   const owner = useSingleCallResult(positionDetails?.tokenId ? positionManager : null, 'ownerOf', [
     positionDetails?.tokenId,
   ]).result?.[0]