Passing null to string warning

The plugin works but I have a warning showing up in debug.log:

[03-Jul-2024 04:05:30 UTC] PHP Deprecated: pathinfo(): Passing null to parameter #1 ($path) of type string is deprecated in /zzz/public_html/wp-content/plugins/urvanov-syntax-highlighter/class-urvanov-syntax-highlighter-langs.php on line 86

I modified the code as follows and it seems OK:

if ( '' != $path) {
extract(pathinfo($path));
}

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