Add

app/Http/Controllers/Api/V1/CommonController.php

@@ -54,7 +54,7 @@ class CommonController extends Controller
         $session_key = !empty($data['session_key']) ? $data['session_key'] : '';
         $user = User::select(['id', 'status', 'phone', 'nickname', 'avatar'])->where('openid', $data['openid'])->first();
         if($req['iv'] && $req['encryptData']) {
-            $decryptedData = $app->encryptor->decryptData($data['session_key'], $req['iv'], $req['encryptData']);
+            $decryptedData = $app->encryptor->decryptData($session_key, $req['iv'], $req['encryptData']);
             \Log::info($decryptedData);
             if(isset($decryptedData['unionId']))$data['unionid'] = $decryptedData['unionId'];
         }