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_products_categories.product_id, 
  GROUP_CONCAT(
    IF(
      cscart_products_categories.link_type = "M", 
      CONCAT(
        cscart_products_categories.category_id, 
        "M"
      ), 
      cscart_products_categories.category_id
    )
  ) AS category_ids, 
  product_position_source.position AS position 
FROM 
  cscart_products_categories 
  INNER JOIN cscart_categories ON cscart_categories.category_id = cscart_products_categories.category_id 
  AND cscart_categories.storefront_id IN (0, 1) 
  AND (
    cscart_categories.usergroup_ids = '' 
    OR FIND_IN_SET(
      0, cscart_categories.usergroup_ids
    ) 
    OR FIND_IN_SET(
      1, cscart_categories.usergroup_ids
    )
  ) 
  AND cscart_categories.status IN ('A', 'H') 
  LEFT JOIN cscart_products_categories AS product_position_source ON cscart_products_categories.product_id = product_position_source.product_id 
  AND product_position_source.category_id = 7204 
WHERE 
  cscart_products_categories.product_id IN (
    84715, 92161, 92162, 92163, 92164, 92165, 
    92166, 84714, 84713, 84712, 84711, 
    84710, 87918, 87919, 87920, 87924, 
    87926, 87930, 87931, 87932, 84940, 
    84941, 87898, 87899, 87902, 84728, 
    84729, 84730, 84731, 84732, 84733, 
    87921, 87923, 87933, 87935, 84720, 
    84723, 84727, 84939, 84734, 84735, 
    84938, 84719, 84722, 84724, 84744, 
    84718, 84721, 84937, 84936, 87922, 
    87928, 87934, 84856, 84857, 84949, 
    84950, 84690, 84748, 87905, 84691, 
    87894, 84847, 84854, 84855, 87906, 
    84689, 84945, 84946, 84754, 84755, 
    84943, 84944, 87904, 87910, 87911, 
    87912, 87896, 88034, 84958, 87892, 
    87897, 84952, 84953, 87909, 87916, 
    87891, 87895, 87903, 87908, 87914, 
    84746, 87893, 87963, 84959, 87913
  ) 
GROUP BY 
  cscart_products_categories.product_id

Query time 0.01135

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "88.49"
    },
    "grouping_operation": {
      "using_filesort": false,
      "nested_loop": [
        {
          "table": {
            "table_name": "cscart_products_categories",
            "access_type": "range",
            "possible_keys": [
              "PRIMARY",
              "link_type",
              "pt"
            ],
            "key": "pt",
            "used_key_parts": [
              "product_id"
            ],
            "key_length": "3",
            "rows_examined_per_scan": 98,
            "rows_produced_per_join": 98,
            "filtered": "100.00",
            "using_index": true,
            "cost_info": {
              "read_cost": "10.10",
              "eval_cost": "9.80",
              "prefix_cost": "19.90",
              "data_read_per_join": "1K"
            },
            "used_columns": [
              "product_id",
              "category_id",
              "link_type"
            ],
            "attached_condition": "(`nuie_scalesta_net`.`cscart_products_categories`.`product_id` in (84715,92161,92162,92163,92164,92165,92166,84714,84713,84712,84711,84710,87918,87919,87920,87924,87926,87930,87931,87932,84940,84941,87898,87899,87902,84728,84729,84730,84731,84732,84733,87921,87923,87933,87935,84720,84723,84727,84939,84734,84735,84938,84719,84722,84724,84744,84718,84721,84937,84936,87922,87928,87934,84856,84857,84949,84950,84690,84748,87905,84691,87894,84847,84854,84855,87906,84689,84945,84946,84754,84755,84943,84944,87904,87910,87911,87912,87896,88034,84958,87892,87897,84952,84953,87909,87916,87891,87895,87903,87908,87914,84746,87893,87963,84959,87913))"
          }
        },
        {
          "table": {
            "table_name": "product_position_source",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY",
              "pt"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "category_id",
              "product_id"
            ],
            "key_length": "6",
            "ref": [
              "const",
              "nuie_scalesta_net.cscart_products_categories.product_id"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 98,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "24.50",
              "eval_cost": "9.80",
              "prefix_cost": "54.20",
              "data_read_per_join": "1K"
            },
            "used_columns": [
              "product_id",
              "category_id",
              "position"
            ]
          }
        },
        {
          "table": {
            "table_name": "cscart_categories",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY",
              "c_status",
              "p_category_id"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "category_id"
            ],
            "key_length": "3",
            "ref": [
              "nuie_scalesta_net.cscart_products_categories.category_id"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 4,
            "filtered": "5.00",
            "cost_info": {
              "read_cost": "24.50",
              "eval_cost": "0.49",
              "prefix_cost": "88.50",
              "data_read_per_join": "12K"
            },
            "used_columns": [
              "category_id",
              "usergroup_ids",
              "status",
              "storefront_id"
            ],
            "attached_condition": "((`nuie_scalesta_net`.`cscart_categories`.`storefront_id` in (0,1)) and ((`nuie_scalesta_net`.`cscart_categories`.`usergroup_ids` = '') or (0 <> find_in_set(0,`nuie_scalesta_net`.`cscart_categories`.`usergroup_ids`)) or (0 <> find_in_set(1,`nuie_scalesta_net`.`cscart_categories`.`usergroup_ids`))) and (`nuie_scalesta_net`.`cscart_categories`.`status` in ('A','H')))"
          }
        }
      ]
    }
  }
}