wpsnoop Function tennisthor_email_valid_hook_callback() conflicts found in 1 plugin

A php function called tennisthor_email_valid_hook_callback() 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 tennisthor_email_valid_hook_callback()

The following plugin registers a function called tennisthor_email_valid_hook_callback():

Plugin
Tennis booking system - TennisThor