Can't execute query

insert into web_download_count 
                           set 
                                lang_type      = 'tw', 
                                file_id        = 193,
                                p_name         = '',
                                dc_id          = 28,
                                dc_name        = '使用說明書',
                                IP_address     = '18.97.9.173',
                                user_device    = 0,
                                user_info      = 'CCBot/2.0 (https://commoncrawl.org/faq/)',
                                o_name         = '',
                                ser_name       = '',
                                sport          = ,
                                version        = '',
                                download_type  = 1,
                                download_time  = '2025-11-17 08:03:21'

MySQL Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ' version = '', ' at line 13

This script cannot continue, terminating.