Warning: oci_connect(): ORA-12170: TNS:Connect timeout occurred in /var/www/html/class/class.OCI.php on line 39

Fatal error: Uncaught TypeError: oci_parse(): Argument #1 ($connection) must be of type resource, false given in /var/www/html/func.php:298 Stack trace: #0 /var/www/html/func.php(298): oci_parse() #1 /var/www/html/func.php(24): CheckService() #2 /var/www/html/index.php(35): Service_Pre_Check() #3 {main} thrown in /var/www/html/func.php on line 298