Gaming for good fundraiser error

Slim Application Error
The application could not run because of the following error:

Details

Type: ErrorException
Code: 2
Message: Division by zero
File: /var/www/www_gamingforgood_net/lib/donation_routes.php
Line: 36
Trace

#0 /var/www/www_gamingforgood_net/lib/donation_routes.php(36): Slim\Slim::handleErrors(2, 'Division by zer...', '/var/www/www_ga...', 36, Array)
#1 [internal function]: {closure}('36241927')
#2 /var/www/www_gamingforgood_net/vendor/slim/slim/Slim/Router.php(172): call_user_func_array(Object(Closure), Array)
#3 /var/www/www_gamingforgood_net/vendor/slim/slim/Slim/Slim.php(1222): Slim\Router->dispatch(Object(Slim\Route))
#4 /var/www/www_gamingforgood_net/vendor/slim/slim/Slim/Middleware/Flash.php(86): Slim\Slim->call()
#5 /var/www/www_gamingforgood_net/vendor/slim/slim/Slim/Middleware/MethodOverride.php(94): Slim\Middleware\Flash->call()
#6 /var/www/www_gamingforgood_net/vendor/slim/slim/Slim/Middleware/PrettyExceptions.php(67): Slim\Middleware\MethodOverride->call()
#7 /var/www/www_gamingforgood_net/vendor/slim/slim/Slim/Slim.php(1174): Slim\Middleware\PrettyExceptions->call()
#8 /var/www/www_gamingforgood_net/index.php(1044): Slim\Slim->run()
#9 {main}