CAPTCHA issue eating up disk space
This is a bit of a random one, but this afternoon our server ran out of space. After some investigation it turned out to be the /webassist/captcha/error_log file running out of control. Its apparently eating 1GB of space every second. The hosting company have set up a cronjob to empty the folder every 5 seconds, but obviously this isn't ideal.
Seems a bit of a mystery as its one of our domains that isn't really used that much.
The repeating error in the log is:
[25-Jan-2018 15:09:31 UTC] PHP Warning: imagecopy() expects parameter 2 to be resource, boolean given in /home/miradatr/public_html/webassist/captcha/wavt_captchasecurityimages.php on line 118
Does that mean anything you?