Error message

• Warning: date_timezone_set() expects parameter 1 to be DateTime, boolean given in format_date() (line 2053 of E:\HostingSpaces\panoptic\linomalighthouse.com\wwwroot\includes\common.inc).
• Warning: date_format() expects parameter 1 to be DateTime, boolean given in format_date() (line 2063 of E:\HostingSpaces\panoptic\linomalighthouse.com\wwwroot\includes\common.inc).