Hi. A while ago my website crashed for a bit and the logs showed this error message:
[09-Oct-2018 14:55:56 UTC] PHP Fatal error: ob_start(): Cannot use output buffering in output buffering display handlers in /home1/puzzleq4/public_html/wp-content/plugins/visual-portfolio/classes/class-images.php on line 101
Do you know why this happened and how can I prevent it from happening again?