WPC Estimated Delivery Date for WooCommerce

Global variables defined by a theme/plugin should start with the theme/plugin prefix. Found: "$active_tab".

$_GET['settings-updated'] not unslashed before sanitization. Use wp_unslash() or similar

Processing form data without nonce verification.

All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '$date'.

Detected usage of a non-sanitized input variable: $_GET['settings-updated']

Processing form data without nonce verification.

Classes declared by a theme/plugin should start with the theme/plugin prefix. Found: "WPC_Core_Registry".

Function "sanitize_textarea_field()" requires WordPress 4.7.0, but your plugin minimum supported version is WordPress 4.0.0.

Global constants defined by a theme/plugin should start with the theme/plugin prefix. Found: "WPC_CORE_DIR".

Functions declared in the global namespace by a theme/plugin should start with the theme/plugin prefix. Found: "wpc_core_register".

The plugin name includes a restricted term. Your chosen plugin name - "WPC Estimated Delivery Date for WooCommerce" - contains the restricted term "wp" which cannot be used at all in your plugin name.

Detected usage of a possibly undefined superglobal array index: $_REQUEST['q']. Check that the array index exists before using it.

Resource version not set in call to wp_enqueue_style(). This means new versions of the style may not always be loaded due to browser caching.

Hook names invoked by a theme/plugin should start with the theme/plugin prefix. Found: "wpc_admin_nav_items".

A function call to esc_html__() with texts containing placeholders was found, but was not accompanied by a "translators:" comment on the line above to clarify the meaning of the placeholders.