Fatal error: Uncaught Error: Call to a member function format() on null in /home/www/b2b/catalog/controller/account/accountdev.php on line 513

Error: Call to a member function format() on null in /home/www/b2b/catalog/controller/account/accountdev.php on line 513

Call Stack:
    0.0000     366216   1. {main}() /home/www/b2b/index.php:0
    0.0075    1131800   2. start() /home/www/b2b/index.php:56
    0.0076    1133560   3. require_once('/home/www/b2b/system/framework.php') /home/www/b2b/system/startup.php:122
    0.3987    1717776   4. Front->dispatch() /home/www/b2b/system/framework.php:119
    0.4046    1842424   5. Front->execute() /home/www/b2b/system/engine/front.php:29
    0.4046    1842424   6. Action->execute() /home/www/b2b/system/engine/front.php:34
    0.4047    1843384   7. ControllerStartupRouter->index() /home/www/b2b/system/engine/action.php:51
    0.4048    1843608   8. Action->execute() /home/www/b2b/catalog/controller/startup/router.php:25
    0.4048    1844912   9. ControllerAccountAccountdev->index() /home/www/b2b/system/engine/action.php:51