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 (
    86267, 86288, 91421, 86340, 86341, 86266, 
    86287, 87749, 86302, 86315, 87752, 
    86275, 86294, 86320, 86295, 86301, 
    86314, 86321, 86274, 87741, 86264, 
    86285, 86265, 86286, 86242, 86293, 
    86319, 86240, 86263, 86284, 87739, 
    87740, 86239, 86241, 87737, 87738, 
    93401, 93402, 93403, 93404, 93405, 
    93406, 94678, 94679, 94680, 94681, 
    94682, 94683
  ) 
  AND cscart_product_descriptions.lang_code = 'en'

Query time 0.00086

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "21.63"
    },
    "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": 48,
      "rows_produced_per_join": 48,
      "filtered": "100.00",
      "cost_info": {
        "read_cost": "16.83",
        "eval_cost": "4.80",
        "prefix_cost": "21.63",
        "data_read_per_join": "183K"
      },
      "used_columns": [
        "product_id",
        "lang_code",
        "short_description",
        "full_description"
      ],
      "attached_condition": "((`nuie_scalesta_net`.`cscart_product_descriptions`.`product_id` in (86267,86288,91421,86340,86341,86266,86287,87749,86302,86315,87752,86275,86294,86320,86295,86301,86314,86321,86274,87741,86264,86285,86265,86286,86242,86293,86319,86240,86263,86284,87739,87740,86239,86241,87737,87738,93401,93402,93403,93404,93405,93406,94678,94679,94680,94681,94682,94683)) and (`nuie_scalesta_net`.`cscart_product_descriptions`.`lang_code` = 'en'))"
    }
  }
}