Asterisk WS is disconnecting on user event in ARI

Hi
I am developing a ARI application in PHP ARI, i would like to send a event with user defined data (array). on receiving this event with data (after validating the userdata) channel originates a call on channel.

But i was able to originate the calls but not able to receive user data. Asterisk is crashing when i have executed the application below is the code

    require_once "./vendor/autoload.php";

    try {

        $conn      = new phpari("asterleaf"); //create new object
        $event     = new events($conn);
        $valiables = array("var1" => "cool");
        $response  = $event->event_generate('justName', "asterleaf", "141", NULL, 'PJSIP/6001', "leosip", $valiables);

        echo json_encode($response);
        exit(0);
    } catch (Exception $e) {
        echo json_encode(array('status' => $e->getCode(), 'message' => $e->getMessage()));
    }

Asterisk Version : 16

below is asterisk log

[Nov  1 08:54:20] ERROR[2815] loader.c: cdr_pgsql declined to load.
[Nov  1 08:54:20] ERROR[2815] loader.c: cdr_tds declined to load.
[Nov  1 08:54:20] ERROR[2815] loader.c: cdr_sqlite3_custom declined to load.
[Nov  1 08:54:20] ERROR[2815] loader.c: cel_sqlite3_custom declined to load.
[Nov  1 08:54:20] ERROR[2815] loader.c: cdr_syslog declined to load.
[Nov  1 08:54:20] ERROR[2815] loader.c: cel_tds declined to load.
[Nov  1 08:54:20] ERROR[2815] loader.c: res_hep_rtcp declined to load.
[Nov  1 08:54:20] ERROR[2815] loader.c: res_hep_pjsip declined to load.
[Nov  1 08:54:57] ERROR[2927] res_http_websocket.c: Error reading from web socket: Connection reset by peer
[Nov  1 08:54:57] WARNING[2927] ari/ari_websockets.c: WebSocket read error: Connection reset by peer

dial plan

[internal]
exten => 6100,1,NoOp()
 same =>      n,Answer(),
 same =>      n,Stasis(asterleaf)
 same =>      n,Hangup()

Any one have similar issue, can any one suggest any advice

Nov 1 08:04:03 asterleaf kernel: [ 1092.400263] asterisk[2041]: segfault at 0 i p 00007fd4e5badfb3 sp 00007fd522e12700 error 4 in res_stasis.so[7fd4e5ba4000+1d0 00]