Can't execute query

insert into web_download_count 
                           set 
                                lang_type      = 'tw', 
                                file_id        = 191,
                                p_name         = '',
                                dc_id          = 28,
                                dc_name        = '使用說明書',
                                IP_address     = '216.73.216.230',
                                user_device    = 0,
                                user_info      = 'Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)',
                                o_name         = '',
                                ser_name       = '',
                                sport          = ,
                                version        = '',
                                download_type  = 1,
                                download_time  = '2025-07-04 04:07:39'

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.