[BUG] Version 6.1.8 file common.php line 4125

Hello,

Variable $image (at the original code) used in ewwwio_delete_file is undefined.

	if ( ewwwio_is_file( $file_path . '.webp' ) ) {
		ewwwio_debug_message( 'removing: ' . $file_path . '.webp' );
		ewwwio_delete_file( $file_path . '.webp' );
	}

You are welcome.
– Albin