I have this error all the time in my cron error log:
[Sat Feb 23 2:17:01 2019] [ow_core_log] [Notice] Message: Undefined index: REQUEST_URI File: /home/mysite/public_html/ow_core/ow.php Line:113
[Sat Feb 23 2:17:01 2019] [ow_core_log] [Notice] Message: Undefined index: REMOTE_ADDR File: /home/mysite/public_html/ow_plugins/blockcountry/bol/service.php Line:198
[Sat Feb 23 2:17:01 2019] [ow_core_log] [Notice] Message: Undefined index: REQUEST_URI File: /home/mysite/public_html/ow_plugins/blockcountry/bol/service.php Line:65