Fatal error: Uncaught Error: Call to a member function exportButtons() on null in C:\dolibarr\www\Lev\storage\framework\views\b54fe87c742a90c3404a343766149286855da9cd.php:1 Stack trace: #0 {main} thrown in C:\dolibarr\www\Lev\storage\framework\views\b54fe87c742a90c3404a343766149286855da9cd.php on line 1