I'm not sure whether this relates to website design or whether it just got into the wrong forum in error; can you give a bit more detail about what you are doing when the error occurs and whether there is any pattern to it?
OnePlus 5T review: Hands-on
Illustrator Andrés Lozano on his improv line work, brazen use of colours & hand sketching
iPhone X review
Comment envoyer gratuitement des gros fichiers ?