request body access error

Have found the following errors in /var/log/httpd/error_log
2017-11-19 13:24:09.458 [ERROR] [ModSecurity] unknown server variable while parsing: FILES:import_file
2017-11-19 13:24:09.458 [ERROR] [ModSecurity] FILES:import_file “@rx <”: Rule not supported.
2017-11-19 13:24:09.466 [ERROR] [ModSecurity] failed to parse a modsec variable. while parsing: %{TIME_EPOCH}
2017-11-19 13:24:09.469 [ERROR] [ModSecurity] unknown server variable while parsing: FILES:import_file
2017-11-19 13:24:09.469 [ERROR] [ModSecurity] FILES:import_file “@contains <”: Rule not supported.
2017-11-19 13:24:09.493 [ERROR] [ModSecurity] unknown server variable while parsing: MATCHED_VARS_NAMES
2017-11-19 13:24:09.493 [ERROR] [ModSecurity] MATCHED_VARS_NAMES “@rx ^ARGS:AGENDA_EXT_(?:NAME|SRC|COLOR)__[\d]{1}$” “t:none”: Rule not supported.
2017-11-19 13:24:09.604 [ERROR] [ModSecurity] unknown server variable while parsing: FILES:file
2017-11-19 13:24:09.604 [ERROR] [ModSecurity] FILES:file “@contains <” “t:none,t:urlDecodeUni,t:htmlEntityDecode”: Rule not supported.
2017-11-19 13:24:09.630 [ERROR] [ModSecurity] failed to parse a modsec variable. while parsing: %{REQUEST_COOKIES.pwg_id}
2017-11-19 13:24:09.631 [ERROR] [ModSecurity] failed to parse a modsec variable. while parsing: %{REQUEST_COOKIES.pwg_id}

İ cant body access on

how to fix ?

Please indicate the type and version of your web server. It seems that you use ruleset for Apache on the LiteSpeed.