oci NOT A VALID MONTH

Hello i am new in codeigniter ., i was building the website development using oracle database.

and i got error code :

Error Number: 1843


ORA-01843: not a valid month
SELECT "A"."ID_PROYEK", "A"."NAMA_PROYEK", "A"."TGL_RENCANA_MULAI", "A"."TGL_RENCANA_SELESAI", "B".* FROM "RAB_PROYEK" "A" LEFT JOIN "NEW_TL_PEMINJAMAN" "B" ON "A"."ID_PROYEK"="B"."PR_ID" WHERE "B"."STATUS" IS NOT NULL AND "A"."TGL_RENCANA_MULAI" > '01-01-2020' ORDER BY "B"."STATUS" DESC

But when i run in oracle database in run well.

someone can help me ? or explain me ?

this is my code :

PHP Code:

$select  = 'A.ID_PROYEK , A.NAMA_PROYEK , A.TGL_RENCANA_MULAI,  A.TGL_RENCANA_SELESAI ,';
$select .= 'B.* ';
$from    = 'RAB_PROYEK A ';
$join['data'][] = [
   'table' => 'NEW_TL_PEMINJAMAN B',
   'join'  => 'A.ID_PROYEK=B.PR_ID',
   'type'  => 'LEFT',
];
$where['data'][] = [
   'column' => 'A.TGL_RENCANA_MULAI >',
   'param'  => '01-01-'.date('Y')
];
$proyeks = $this->query->get_data_complex($select,$from,  NULL, NULL, NULL, $join, $where, null , null , $order_by); 


PHP Code:

The query (models)

function get_data_complex($select = NULL, $table = NULL, $limit = NULL, $like = NULL, $order = NULL, $join = NULL, $where = NULL, $where2 = NULL, $group_by = NULL, $orderby = null, $distinct = null)
    {
        $this->db->select($select);
        $this->db->from($table);
        if ($join) {
            for ($i = 0; $i < sizeof($join['data']); $i++) {
                $this->db->join($join['data'][$i]['table'], $join['data'][$i]['join'], $join['data'][$i]['type']);
            }
        }
        if ($where) {
            for ($i = 0; $i < sizeof($where['data']); $i++) {
                $this->db->where($where['data'][$i]['column'], $where['data'][$i]['param']);
            }
        }
        if ($where2) {
            $this->db->group_start();
            for ($i = 0; $i < sizeof($where2['data']); $i++) {
                $this->db->or_where($where2['data'][$i]['column'], $where2['data'][$i]['param']);
            }
            $this->db->group_end();
        }
        if ($like) {
            $this->db->group_start();
            foreach (explode(',', $like['data'][0]['column']) as $i => $value) {
                if ($i == 0) $this->db->like($value, $like['data'][0]['param'], 'BOTH');
                else $this->db->or_like($value, $like['data'][0]['param'], 'BOTH');
            }
            $this->db->group_end();
        }
        if ($limit) {
            $this->db->limit($limit['finish'], $limit['start']);
        }
        if ($order) {
            for ($i = 0; $i < sizeof($order['data']); $i++) {
                $this->db->order_by($order['data'][$i]['column'], $order['data'][$i]['type']);
            }
        }
        if ($group_by) {
            $this->db->group_by($group_by);
        }

        if ($orderby) {
            $this->db->order_by($orderby);
        }

        if ($distinct) {
            $this->db->distinct();
        }

        $query = $this->db->get();
        return $query;
        
    } 


thanks for advice!