Added SSL now checkout page comes up blank

[OutreachUG]

We added an SSL certificate to the web site to protect someone entering a credit card number.

I followed the instructions to enable the SSL - changed the define to 'true'. When I click 'add to cart' and 'go to checkout', a blank page comes up.

I added debugging as suggested in article 82 (and others). This is the message given when I go to checkout:
[19-May-2009 11:43:47] PHP Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /home/content/o/u/t/outreachuganda/html/zencart/includes/configure.php:137) in /home/content/o/u/t/outreachuganda/html/zencart/includes/functions/sessions.php on line 108

[19-May-2009 11:43:48] PHP Warning: Cannot modify header information - headers already sent by (output started at /home/content/o/u/t/outreachuganda/html/zencart/includes/configure.php:137) in /home/content/o/u/t/outreachuganda/html/zencart/includes/init_includes/init_templates.php on line 78

Is there something else I need to change to get ZenCart to accept the new SSL?

ZenCart was installed on GoDaddy about 1 month ago & worked ok until adding the SSL certificate.
Thanks for any help.
Betty

[Steven300]

Does this FAQ help?
https://www.zen-cart.com/tutorials/index.php?article=87