Sessions problem on v2.02

[shirley]

Here is the site (has been running fine for many months):
Glenda Cason Gallery :
Here are the warnings that have shown up morning:
Warning: eregi() [function.eregi]: REG_EMPTY in /mnt/r0209/d46/s24/b026add5/www/store/catalog/includes/application_top.php on line 48

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /mnt/r0209/d46/s24/b026add5/www/store/catalog/includes/application_top.php:4 in /mnt/r0209/d46/s24/b026add5/www/store/catalog/includes/functions/sessions.php on line 99

I looked at various forum answers with these key words but am now very confused as to what I need to do, never had this problem, plus no recent maintenance to cause them. I know how to change pages but am not a php person...my server is with netfirms, could they have changed something?
Would like to know how to proceed? If I need some paid help, please advise...

Just found this post - will try to understand.
Need Help with Warning Messages

[shirley]

Here is the site (has been running fine for many months):
Glenda Cason Gallery :
Here are the warnings that have shown up morning:
Warning: eregi() [function.eregi]: REG_EMPTY in /mnt/r0209/d46/s24/b026add5/www/store/catalog/includes/application_top.php on line 48

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /mnt/r0209/d46/s24/b026add5/www/store/catalog/includes/application_top.php:4 in /mnt/r0209/d46/s24/b026add5/www/store/catalog/includes/functions/sessions.php on line 99

I looked at various forum answers with these key words but am now very confused as to what I need to do, never had this problem, plus no recent maintenance to cause them. I know how to change pages but am not a php person...my server is with netfirms, could they have changed something?
Would like to know how to proceed? If I need some paid help, please advise...

Just found this post - will try to understand.
Need Help with Warning Messages

Yep, Netfirms changed to Php5. I switched back to Php4 and it works now.
I think that most anytime the program breaks after weeks of no changes, it is best to check in with your service provider to see what they have recently changed.
So thanks for anyone that looked at my problem above...