Posts not showing

Hi
Recently I started to have problems with this theme, apparently there is an error when the date-time is in unicode (arabic or persian) and it is not showing any of the posts neither in the blog home page or by direct list. Here is the error I get in the error_log file:

Stack trace:
#0 ../blog/wp-content/themes/customizr/inc/parts/class-content-headings.php(553): DateTime->__construct(‘????????-????-?…’)
#1 ../blog/wp-includes/plugin.php(214): TC_headings->tc_add_update_notice_in_title(‘tc_post_page_title_callback(Array in ../blog/wp-content/themes/customizr/inc/parts/class-content-headings.php on line 553
[15-Dec-2014 20:28:25] PHP Fatal error: Uncaught exception ‘Exception’ with message ‘DateTime::__construct() [datetime.–construct]: Failed to parse time string (€±€≥€π€≥-€∞€±-€±€∞ €±€∞:€≤€∂:€¥€≥) at position 0 (€): Unexpected character’ in ../blog/wp-content/themes/customizr/inc/parts/class-content-headings.php:553