Zencart version 1.5.0, hosting service Hosting Matters. I have a store with ebooks that customers download, and it had been working very well. Then my customers started getting an error after they had ordered and paid for their books, preventing the download (Forbidden --You don't have permission to access /zencart/pub/.kwtytuyvvcxztfxs-1340634066/RavensChildrenARC.mobi on this server. Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.)

I had done nothing to change my Zencart store. My hosting service says the only change they did to the server hosting my store was change the php version from 5.2 to 5.3, but I think if that had caused problems the forum would be in flames The only other issue I noticed was an error message when I log in to the zencart admin, concerning timestamps that I could work around (supposedly zencart not recognizing the valid timezone set in the system php.ini) would that somehow cause download errors? My site error log shows nothing. I looked in the /zencart/cache log files, which only show the timestamp error:

Code:
date() [<a href='function.date'>function.date</a>]: 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 'EDT/-4.0/DST' instead in /home/chaseadv/public_html/zencart/includes/counter.php on line 21
[05-Jul-2012 20:26:20 UTC] PHP Warning:  mktime() [<a href='function.mktime'>function.mktime</a>]: 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 'EDT/-4.0/DST' instead in /home/chaseadv/public_html/zencart/includes/counter.php on line 53
[05-Jul-2012 20:26:20 UTC] PHP Warning:  strftime() [<a href='function.strftime'>function.strftime</a>]: It is not safe to rely on the system's timezone settings. You are
Thanks in advance,
Sabrina