I found this log from OpenCart 2.1.x Admin:

2015-11-27 6:37:45 - PHP Unknown: preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead in D:\Projects\UniServerZ\www\shop\admin\controller\module\tg_boocity_settings.php on line 411
2015-11-27 6:37:55 - PHP Unknown: preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead in D:\Projects\UniServerZ\www\shop\admin\controller\module\tg_boocity_settings.php on line 437
2015-11-27 6:38:04 - PHP Unknown: preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead in D:\Projects\UniServerZ\www\shop\admin\controller\module\tg_boocity_settings.php on line 463

Still dont know, which parts will affected. OpenCart just installed.
But that errors show.

Thanks.

Hi,

Can you submit a support ticket with your access information, so we can diagnose the issue. Thank you.