Error in home page ojs3.0.1.0

hello,

after make the error in config file on i try to enter the ojs 3.0.1.0 and the error message

Warning: mktime(): It is not safe to rely on the system’s timezone settings. You are required to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone ‘UTC’ for now, but please set date.timezone to select your timezone. in /home/ihcpiraq/public_html/ojs2/lib/pkp/lib/adodb/adodb-time.inc.php on line 1073

Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /home/ihcpiraq/public_html/ojs2/lib/pkp/lib/adodb/adodb-time.inc.php:1073) in /home/ihcpiraq/public_html/ojs2/lib/pkp/classes/session/SessionManager.inc.php on line 59

Warning: Cannot modify header information - headers already sent by (output started at /home/ihcpiraq/public_html/ojs2/lib/pkp/lib/adodb/adodb-time.inc.php:1073) in /home/ihcpiraq/public_html/ojs2/lib/pkp/classes/session/SessionManager.inc.php on line 225

Warning: Cannot modify header information - headers already sent by (output started at /home/ihcpiraq/public_html/ojs2/lib/pkp/lib/adodb/adodb-time.inc.php:1073) in /home/ihcpiraq/public_html/ojs2/lib/pkp/classes/session/SessionManager.inc.php on line 234

Warning: Cannot modify header information - headers already sent by (output started at /home/ihcpiraq/public_html/ojs2/lib/pkp/lib/adodb/adodb-time.inc.php:1073) in /home/ihcpiraq/public_html/ojs2/lib/pkp/classes/core/PKPRequest.inc.php on line 99

how can i do please im stop work can not enter

Note that you can turn error_reporting “Off” in config.inc.php for normal website operations.

To resolve these particular errors, set the date.timezone setting in your php.ini or .htaccess file. This will resolve the “Warning: mktime()” message, and it is that message which causes the subsequent messages.