PHP Page Error

EXCEPTION TYPE: E_NOTICE_EXCEPTION
MESSAGE: Undefined variable: french
SITE PAGE: https://www.jobstcompressioninstitute.com/search.php
LOCATION: C:\inetpub\jobstcompressioninstitute.com\includes\inc_header.php
LINE NUMBER: 7
USER AGENT: CCBot/2.0 (https://commoncrawl.org/faq/)
OPERATING SYSTEM: unknown
BROWSER: unknown unknown
MOBILE: No
ROBOT: No
IP ADDRESS: 3.238.7.202
ERROR TIME: February 25, 2021 10:59 am

--------------------------------------------------------------------------- PHP STACK TRACE ---------------------------------------------------------------------------
#1 C:\inetpub\jobstcompressioninstitute.com\search.php(29): include_once('C:\\inetpub\\jobs...')
#2 {main}