wpsnoop Function old_deactivate() conflicts found in 1 plugin

A php function called old_deactivate() 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 old_deactivate()

The following plugin registers a function called old_deactivate():

Plugin
Old Post Notifier