Can't execute query

insert into web_download_count 
                           set 
                                lang_type      = 'eng', 
                                file_id        = 258,
                                p_name         = 'PS3 to PS4(A1) ',
                                dc_id          = ,
                                dc_name        = 'PS3 to PS4',
                                IP_address     = '3.239.111.79',
                                user_device    = 0,
                                user_info      = 'CCBot/2.0 (https://commoncrawl.org/faq/)',
                                o_name         = 'PS3toPS4_FirmwareUpdateGuide_201609.pdf',
                                ser_name       = '2112136866.pdf',
                                sport          = 0,
                                version        = 'V2.6a',
                                download_type  = 1,
                                download_time  = '2022-05-17 19:14:12'

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 ' dc_name = 'PS3 to PS4', ' at line 6

This script cannot continue, terminating.