PHP Deprecated

Message

unserialize(): Passing null to parameter #1 ($data) of type string is deprecated

Error at

app/addons/hybrid_auth/func.php, line: 200

Backtrace

SELECT 
  cscart_product_descriptions.product_id, 
  cscart_product_descriptions.short_description, 
  IF(
    cscart_product_descriptions.short_description = '' 
    OR cscart_product_descriptions.short_description IS NULL, 
    cscart_product_descriptions.full_description, 
    ''
  ) AS full_description 
FROM 
  cscart_product_descriptions 
WHERE 
  cscart_product_descriptions.product_id IN (
    88368, 88369, 94387, 94396, 94397, 94399, 
    94400, 94423, 94424, 94858, 94859, 
    94867, 94868, 94870, 94871, 94896, 
    94897, 94906, 94907, 94916, 94917, 
    94919, 94920, 94945, 94946, 96250, 
    96251, 96260, 96261, 96263
  ) 
  AND cscart_product_descriptions.lang_code = 'en'

Query time 0.00075

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "13.52"
    },
    "table": {
      "table_name": "cscart_product_descriptions",
      "access_type": "range",
      "possible_keys": [
        "PRIMARY",
        "product_id"
      ],
      "key": "PRIMARY",
      "used_key_parts": [
        "product_id",
        "lang_code"
      ],
      "key_length": "9",
      "rows_examined_per_scan": 30,
      "rows_produced_per_join": 30,
      "filtered": "100.00",
      "cost_info": {
        "read_cost": "10.52",
        "eval_cost": "3.00",
        "prefix_cost": "13.52",
        "data_read_per_join": "114K"
      },
      "used_columns": [
        "product_id",
        "lang_code",
        "short_description",
        "full_description"
      ],
      "attached_condition": "((`nuie_scalesta_net`.`cscart_product_descriptions`.`product_id` in (88368,88369,94387,94396,94397,94399,94400,94423,94424,94858,94859,94867,94868,94870,94871,94896,94897,94906,94907,94916,94917,94919,94920,94945,94946,96250,96251,96260,96261,96263)) and (`nuie_scalesta_net`.`cscart_product_descriptions`.`lang_code` = 'en'))"
    }
  }
}