Setting the option 'Expire Logs' from 0 to 7 caused an error (probably/possibly while deleting log files older than 7 days). As a result of using this setting, the log files can not be accessed any more. My browser gets in a loop trying to connect to the page.
The reason I changed this setting was because my DB was getting insanely big.
Anyone, any idea how to fix this? I'm using version 2.2.10.