In your tax_query array you need to add the keys as well as the values.
So…
'tax_query' => array(
array(
'taxonomy' => 'event_specific',
'field' => 'slug',
'terms' => 'main-event'
)
)
In your tax_query array you need to add the keys as well as the values.
So…
'tax_query' => array(
array(
'taxonomy' => 'event_specific',
'field' => 'slug',
'terms' => 'main-event'
)
)