• Two deprecation messages:

    ( ! ) Deprecated: strpos(): Passing null to parameter #1 ($haystack) of type string is deprecated
    ( ! ) Deprecated: str_replace(): Passing null to parameter #3 ($subject) of type array|string is deprecated

    cyr-and-lat.php LINE: 22

    define( 'WCTLR_PLUGIN_URL', plugins_url( null, __FILE__ ) );

    to

    define( 'WCTLR_PLUGIN_URL', plugins_url( '', __FILE__ ) );

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