MyBB Community Forums

my forum don't send log errors, i know my forum have errors as some of my friends told me that they can't register because when they do click register, it prompt them an 404 error. how can i set it to send errors to a file?

404 errors aren't handled by MyBB, they're handled by the webserver. You can set MyBB to send emails about MyBB specific errors via ACP > Settings > Server and Optimization Options > Error Logging Medium