sf error log fix (#7563)

x/superfluid/keeper/epoch.go

@@ -75,6 +75,7 @@ func (k Keeper) MoveSuperfluidDelegationRewardToGauges(ctx sdk.Context, accs []t
 			_, err := k.ck.WithdrawDelegationRewards(cacheCtx, addr, valAddr)
 			if errors.Is(err, distributiontypes.ErrEmptyDelegationDistInfo) {
 				ctx.Logger().Debug("no swaps occurred in this pool between last epoch and this epoch")
+				return nil
 			} else if err != nil {
 				return err
 			}