We solved it by using this extension on the functions.php
function tribe_allow_large_joins()
{
global $wpdb;
$wpdb->query('SET SQL_BIG_SELECTS=1');
}
add_action('init', 'tribe_allow_large_joins');
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Reply To: [Assigned] Search with more than 6 parameters generates SET SQL_BIG_SELECTS=1 or SET MAX_JO
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