Cannot send session cookie - admin broken

[FrankDeRosa]

I was attempting to add the Additional Customer Fields modules and managed to break my customer site, while the admin site managed to keep working. I did follow instructions and made a backup, but since I wiped the old site and restored from the backup, I get the following errors:

Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /home/birchdev/public_html/inbio/admin/includes/classes/logger.php:106) in /home/birchdev/public_html/inbio/includes/functions/sessions.php on line 108

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/birchdev/public_html/inbio/admin/includes/classes/logger.php:106) in /home/birchdev/public_html/inbio/includes/functions/sessions.php on line 108

Warning: Cannot modify header information - headers already sent by (output started at /home/birchdev/public_html/inbio/admin/includes/classes/logger.php:106) in /home/birchdev/public_html/inbio/admin/includes/init_includes/init_templates.php on line 69

Warning: Cannot modify header information - headers already sent by (output started at /home/birchdev/public_html/inbio/admin/includes/classes/logger.php:106) in /home/birchdev/public_html/inbio/admin/includes/functions/general.php on line 37

I have no idea what the problem is. The customer side of the site is now working fine, but I can't get into the admin side without these errors. The screen is otherwise blank, indicated by the "Cannot modify header information" error. I was able to see the admin panel briefly, as I was logged in when the errors started, but I logged out to see if the error was related to my session. Obviously, I can't log back in.

Any help? I'd like to get logged back in ASAP as I have lot of work to do to finish off this site.

Thanks,
Frank

[FrankDeRosa]

It seems like a file transfer or other added loads of blank lines to my files, including the last lines... so this came into play:

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

Doh. I did plenty of searches in here but I managed to miss this page. Problem solved.