There are times when we need to remove content from a file from our server space. Especially, those unwanted log content which are produced on the fly by your codes on purpose.
To my experience, some logs that are already checked should be deleted to save server space.
Note that when the log file exceeds the maximum file size defined in the configuration, it created another new one and rename the previous one to be something like domain.com.error.log.1, domain.com.error.log.2, and so on.
To remove those backup logs, just
To delete the content of the domain.com.error.log file, run the following command:
truncate -s 0 domain.com.error.log