If you run a very old PHP version, this error might show up in wp-admin of your site. You should upgrade the PHP version on your site to at least PHP 5.6 in order to get rid of this error.
Why am I receiving the error "Fatal error: Can't use function return value in write context in ..."
This error might show up on your site in wp-admin.

Written by Dave
Updated over a week ago
Updated over a week ago