crash 信息 {代码...} {代码...} 89行是这句, 不知道为啥会崩溃 {代码...}

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crash 信息

SEGV_ACCERR
cardloan -[HomeMoneyView refreshView] (HomeMoneyView.m:)

cardloan    -[HomeMoneyView refreshView] (HomeMoneyView.m:89)
5 cardloan    -[HomeMoneyTextFiedTablieViewCell initWithStyle:reuseIdentifier:] (HomeMoneyTextFiedTablieViewCell.m:61)

@try {
        
        // 刷新每期费用
        CGFloat monthMoney = [[MoneyLoan sharedInstance] getPeriodsFeeWithMoney:[_moneyTextField.text floatValue] periods:_periods];;
        
        NSString *approvedAmountStr = [NSString stringWithFormat:@"%@元", [NSString moneyToStrings:monthMoney]];
        NSMutableAttributedString *attrStr = [[NSMutableAttributedString alloc] initWithString:approvedAmountStr];
        [attrStr setAttributes:@{
                                 NSFontAttributeName:kFont(15.)
                                 }
                         range:NSMakeRange(attrStr.length - 3, 3)];
        _monthMoneyLabel.attributedText = attrStr;
        
        _circleLayer.progress = [_moneyTextField.text floatValue] / _moneyTextField.moneyRange.max;
        
    } @catch (NSException *exception) {
        
    } @finally {
        
    }

89行是这句, 不知道为啥会崩溃

[attrStr setAttributes:@{
                                 NSFontAttributeName:kFont(15.)
                                 }
                         range:NSMakeRange(attrStr.length - 3, 3)];