Erro!

# 1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'AND id_concurso =' at line 1

SELECT * FROM agora_sistemaconcurso.tb_concursos, agora_sistemaconcurso.tb_clientes WHERE id_entidade = fk_entidade AND situacao = AND id_concurso =