Solve a error message after I did a server migration of my magento store.

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$10 - $30

Project Description:
I migrated my magento store to a new server, but I cant acess the store, when I try to acess it shows this message:

Strict Standards: main() [function.main]: It is not safe to rely on the system's timezone settings. Please use the date.timezone setting, the TZ environment variable 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/Sao_Paulo' for 'BRST/-2.0/DST' instead in /home/ofert061/public_html/novaloja/app/Mage.php on line 31

Fatal error: Call to undefined method Mage::register() in /home/ofert061/public_html/novaloja/app/Mage.php on line 31

I think it is some problem about Timezone because the last server was in a diferente timezone from the new.

you can see the eror message at the link:

atached is the print screen of the erros message

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