I installed ms membership on xampp 1.7.3 local install to try it out, everything work so far except when I run a report for "sales charts" and "reocuring payments statistics" I get this error message.

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warning: localtime() [function.localtime]: 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 'America/New_York' for '-4.0/DST' instead in I:\xampp\htdocs\newsite\sites\all\modules\moneyscripts\ms_core\ms_reports\ms_reports.module on line 82.
warning: mktime() [function.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 'America/New_York' for '-4.0/DST' instead in I:\xampp\htdocs\newsite\sites\all\modules\moneyscripts\ms_core\ms_reports\ms_reports.module on line 84.
warning: date() [function.date]: 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 'America/New_York' for '-4.0/DST' instead in I:\xampp\htdocs\newsite\sites\all\modules\moneyscripts\ms_core\ms_reports\ms_reports.module on line 463.
warning: localtime() [function.localtime]: 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 'America/New_York' for '-4.0/DST' instead in I:\xampp\htdocs\newsite\sites\all\modules\moneyscripts\ms_core\ms_reports\ms_reports.module on line 82.
warning: mktime() [function.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 'America/New_York' for '-4.0/DST' instead in I:\xampp\htdocs\newsite\sites\all\modules\moneyscripts\ms_core\ms_reports\ms_reports.module on line 84.
warning: date() [function.date]: 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 'America/New_York' for '-4.0/DST' instead in I:\xampp\htdocs\newsite\sites\all\modules\moneyscripts\ms_core\ms_reports\ms_reports.module on line 463.
warning: localtime() [function.localtime]: 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 'America/New_York' for '-4.0/DST' instead in I:\xampp\htdocs\newsite\sites\all\modules\moneyscripts\ms_core\ms_reports\ms_reports.module on line 82.
warning: mktime() [function.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 'America/New_York' for '-4.0/DST' instead in I:\xampp\htdocs\newsite\sites\all\modules\moneyscripts\ms_core\ms_reports\ms_reports.module on line 84.
warning: date() [function.date]: 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 'America/New_York' for '-4.0/DST' instead in I:\xampp\htdocs\newsite\sites\all\modules\moneyscripts\ms_core\ms_reports\ms_reports.module on line 463.
warning: localtime() [function.localtime]: 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 'America/New_York' for '-4.0/DST' instead in I:\xampp\htdocs\newsite\sites\all\modules\moneyscripts\ms_core\ms_reports\ms_reports.module on line 82.
warning: mktime() [function.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 'America/New_York' for '-4.0/DST' instead in I:\xampp\htdocs\newsite\sites\all\modules\moneyscripts\ms_core\ms_reports\ms_reports.module on line 84.
warning: date() [function.date]: 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 'America/New_York' for '-4.0/DST' instead in I:\xampp\htdocs\newsite\sites\all\modules\moneyscripts\ms_core\ms_reports\ms_reports.module on line 463.
warning: localtime() [function.localtime]: 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 'America/New_York' for '-4.0/DST' instead in I:\xampp\htdocs\newsite\sites\all\modules\moneyscripts\ms_core\ms_reports\ms_reports.module on line 82.
warning: mktime() [function.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 'America/New_York' for '-4.0/DST' instead in I:\xampp\htdocs\newsite\sites\all\modules\moneyscripts\ms_core\ms_reports\ms_reports.module on line 84.
warning: date() [function.date]: 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 'America/New_York' for '-4.0/DST' instead in I:\xampp\htdocs\newsite\sites\all\modules\moneyscripts\ms_core\ms_reports\ms_reports.module on line 463.
warning: localtime() [function.localtime]: 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 'America/New_York' for '-4.0/DST' instead in I:\xampp\htdocs\newsite\sites\all\modules\moneyscripts\ms_core\ms_reports\ms_reports.module on line 82.
warning: mktime() [function.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 'America/New_York' for '-4.0/DST' instead in I:\xampp\htdocs\newsite\sites\all\modules\moneyscripts\ms_core\ms_reports\ms_reports.module on line 84.
warning: date() [function.date]: 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 'America/New_York' for '-4.0/DST' instead in I:\xampp\htdocs\newsite\sites\all\modules\moneyscripts\ms_core\ms_reports\ms_reports.module on line 463.
warning: localtime() [function.localtime]: 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 'America/New_York' for '-4.0/DST' instead in I:\xampp\htdocs\newsite\sites\all\modules\moneyscripts\ms_core\ms_reports\ms_reports.module on line 82.
warning: mktime() [function.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 'America/New_York' for '-4.0/DST' instead in I:\xampp\htdocs\newsite\sites\all\modules\moneyscripts\ms_core\ms_reports\ms_reports.module on line 84.
warning: date() [function.date]: 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 'America/New_York' for '-4.0/DST' instead in I:\xampp\htdocs\newsite\sites\all\modules\moneyscripts\ms_core\ms_reports\ms_reports.module on line 463.
warning: localtime() [function.localtime]: 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 'America/New_York' for '-4.0/DST' instead in I:\xampp\htdocs\newsite\sites\all\modules\moneyscripts\ms_core\ms_reports\ms_reports.module on line 82.
warning: mktime() [function.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 'America/New_York' for '-4.0/DST' instead in I:\xampp\htdocs\newsite\sites\all\modules\moneyscripts\ms_core\ms_reports\ms_reports.module on line 84.
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