wpsnoop Function __return_one() conflicts found in 1 plugin

A php function called __return_one() is used in 1 wordpress plugin/theme and could produce a potential conflict if the wrong combination of themes and plugins is used on your site.

To prevent this from happening developers are encouraged to use namespaces and scopes that isolate their functions from colliding with other functions but this is not always done correctly.

We hope this reference helps you to find PHP Fatal error: Cannot redeclare __return_one()

The following plugin registers a function called __return_one():

Plugin
WP Rocket ASYNC CSS