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 = 7195 
WHERE 
  cscart_products_categories.product_id IN (
    97553, 97554, 97555, 97556, 97557, 97558, 
    97559, 97560, 97561, 97562, 97563, 
    97564, 97565, 97566, 97568, 97569, 
    97571, 97572, 97587, 97588, 97589, 
    97590, 97591, 97592, 97593, 97594, 
    97595, 97596, 97597, 97598, 97599, 
    97600, 97601, 97602, 97603, 97604, 
    97605, 97606, 97607, 97713, 97714, 
    97715, 97953, 97954, 97955, 97956, 
    97957, 97958, 97994, 97995, 97996, 
    97997, 97998, 97999, 98000, 98024, 
    98025, 98026, 98027, 98028, 98029, 
    98457, 98458, 98459, 98460, 98461, 
    98462, 98463, 98464, 98465, 98466, 
    98467, 98468, 98469, 98470, 98471, 
    98472, 98473, 98474, 98475, 98496, 
    98497, 98498, 98499, 98500, 98501, 
    98515, 98521, 98522, 99026, 99027, 
    99028, 99029, 99030, 99031, 99032
  ) 
GROUP BY 
  cscart_products_categories.product_id

Query time 0.01622

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "102.00"
    },
    "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": 113,
            "rows_produced_per_join": 113,
            "filtered": "100.00",
            "using_index": true,
            "cost_info": {
              "read_cost": "11.60",
              "eval_cost": "11.30",
              "prefix_cost": "22.90",
              "data_read_per_join": "1K"
            },
            "used_columns": [
              "product_id",
              "category_id",
              "link_type"
            ],
            "attached_condition": "(`nuie_scalesta_net`.`cscart_products_categories`.`product_id` in (97553,97554,97555,97556,97557,97558,97559,97560,97561,97562,97563,97564,97565,97566,97568,97569,97571,97572,97587,97588,97589,97590,97591,97592,97593,97594,97595,97596,97597,97598,97599,97600,97601,97602,97603,97604,97605,97606,97607,97713,97714,97715,97953,97954,97955,97956,97957,97958,97994,97995,97996,97997,97998,97999,98000,98024,98025,98026,98027,98028,98029,98457,98458,98459,98460,98461,98462,98463,98464,98465,98466,98467,98468,98469,98470,98471,98472,98473,98474,98475,98496,98497,98498,98499,98500,98501,98515,98521,98522,99026,99027,99028,99029,99030,99031,99032))"
          }
        },
        {
          "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": 113,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "28.25",
              "eval_cost": "11.30",
              "prefix_cost": "62.45",
              "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": 5,
            "filtered": "5.00",
            "cost_info": {
              "read_cost": "28.25",
              "eval_cost": "0.57",
              "prefix_cost": "102.00",
              "data_read_per_join": "14K"
            },
            "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')))"
          }
        }
      ]
    }
  }
}