huge error.log

Hi!
I need some help. I have the SuiteCRM 7.4.1 stopped yesterday because out of space on the disk. it turned out that in the Apache log at a rate of 100 entries in the second line was written:
Use of undefined constant acl - assumed ‘acl’ in /var/www/html/sugarcrm/modules/acl_fields/logic_for_subpanelAndDashletsList.php on line 36, referer: http://37.139.19.13/sugarcrm/index.php?module=Calls&action=index
what it means and what I should to do?

Try and run a repair roles, then a repair and rebuild.

Also you can limit the log file size for Apache so that it doesn’t get too big.

https://httpd.apache.org/docs/2.4/logs.html

Thank you I’ll try it