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Fatal error: Uncaught Error: Call to a member function query() on null in C:\unasamwebs\htdocsinvestiga\webs\investiga\busqueda.php:33 Stack trace: #0 C:\unasamwebs\htdocsinvestiga\webs\investiga\busqueda.php(5): buscar('V') #1 {main} thrown in C:\unasamwebs\htdocsinvestiga\webs\investiga\busqueda.php on line 33