When I comment out the timer_start() I get these errors:
Warning: main(ABSPATH/wp-admin/upgrade-functions.php): failed to open stream: No such file or directory in /home/hdtravel/public_html/wp-admin/upgrade.php on line 5
Fatal error: main(): Failed opening required ‘ABSPATH/wp-admin/upgrade-functions.php’ (include_path=’.:/usr/lib/php:/usr/local/lib/php’) in /home/hdtravel/public_html/wp-admin/upgrade.php on line 5