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 = 7223 
WHERE 
  cscart_products_categories.product_id IN (
    84352, 84355, 84356, 84531, 84532, 84597, 
    84598, 84292, 84293, 84349, 84350, 
    84353, 84354, 84322, 84323, 84333, 
    84334, 85821, 84659, 84660, 89242, 
    84654, 84655, 84527, 84528, 84593, 
    84594, 84657, 84658, 84522, 84523, 
    84588, 84589, 89052, 84329, 84330, 
    84525, 84526, 84591, 84592, 84675, 
    84676, 84629, 84630, 89429, 84543, 
    84544, 84609, 84610, 84324, 84325, 
    84497, 84498, 84563, 84564, 89049, 
    89050, 84649, 84650, 84345, 84346, 
    84327, 84328, 84517, 84518, 84583, 
    84584, 84648, 84644, 84516, 84582, 
    84512, 84578, 84626, 89039, 84299, 
    84300, 84319, 84320, 84494, 84560, 
    84314, 84668, 84669, 84673, 84674, 
    84656, 84318, 84536, 84537, 84602, 
    84603, 89035, 84492, 84296, 84541
  ) 
GROUP BY 
  cscart_products_categories.product_id

Query time 0.00227

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "57.61"
    },
    "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": 101,
            "rows_produced_per_join": 101,
            "filtered": "100.00",
            "using_index": true,
            "cost_info": {
              "read_cost": "10.40",
              "eval_cost": "10.10",
              "prefix_cost": "20.50",
              "data_read_per_join": "1K"
            },
            "used_columns": [
              "product_id",
              "category_id",
              "link_type"
            ],
            "attached_condition": "(`nuie_scalesta_net`.`cscart_products_categories`.`product_id` in (84352,84355,84356,84531,84532,84597,84598,84292,84293,84349,84350,84353,84354,84322,84323,84333,84334,85821,84659,84660,89242,84654,84655,84527,84528,84593,84594,84657,84658,84522,84523,84588,84589,89052,84329,84330,84525,84526,84591,84592,84675,84676,84629,84630,89429,84543,84544,84609,84610,84324,84325,84497,84498,84563,84564,89049,89050,84649,84650,84345,84346,84327,84328,84517,84518,84583,84584,84648,84644,84516,84582,84512,84578,84626,89039,84299,84300,84319,84320,84494,84560,84314,84668,84669,84673,84674,84656,84318,84536,84537,84602,84603,89035,84492,84296,84541))"
          }
        },
        {
          "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": 5,
            "filtered": "5.00",
            "cost_info": {
              "read_cost": "25.25",
              "eval_cost": "0.51",
              "prefix_cost": "55.85",
              "data_read_per_join": "13K"
            },
            "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')))"
          }
        },
        {
          "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": 5,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "1.26",
              "eval_cost": "0.51",
              "prefix_cost": "57.61",
              "data_read_per_join": "80"
            },
            "used_columns": [
              "product_id",
              "category_id",
              "position"
            ]
          }
        }
      ]
    }
  }
}