Cannot inline edit records in Meetings module

Hi everyone, recently I’ve encountered a problem in my suitecrm. I have inline edit option on, but when I doubleclick I get “There was an error loading the field. Your session may have timed out…”. I don’t understand why I get this error only in one module “meetings”. So I guess the issue is not in config.php or inlineediting.js/.php, but it doesn’t make me feel better