Warning: Trying to access array offset on value of type null in /var/www/html/index.php on line 26

Fatal error: Uncaught TypeError: from_pc(): Argument #1 ($v) must be of type float, null given, called in /var/www/html/index.php on line 26 and defined in /var/www/html/common_inc.php:73 Stack trace: #0 /var/www/html/index.php(26): from_pc(NULL, 'ly') #1 {main} thrown in /var/www/html/common_inc.php on line 73