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vanessabt

Warning session start errors

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vanessabt

Hello,

Recently one of my clients contacted me regarding a site that we used DMS2 for approximately 2 years ago.  This error has started showing up on their site:

Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /home/content/26/9834126/html/pianolessonswithanastasia/wp-includes/default-filters.php:1) in /home/content/26/9834126/html/pianolessonswithanastasia/wp-content/plugins/custom-sidebars/inc/external/wpmu-lib/functions-wpmulib.php on line 73

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/content/26/9834126/html/pianolessonswithanastasia/wp-includes/default-filters.php:1) in /home/content/26/9834126/html/pianolessonswithanastasia/wp-content/plugins/custom-sidebars/inc/external/wpmu-lib/functions-wpmulib.php on line 73

 I have tried to log into the site /wp-admin but when I do that I get this on a blank page:


Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /home/content/26/9834126/html/pianolessonswithanastasia/wp-includes/default-filters.php:1) in /home/content/26/9834126/html/pianolessonswithanastasia/wp-content/plugins/custom-sidebars/inc/external/wpmu-lib/functions-wpmulib.php on line 73

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/content/26/9834126/html/pianolessonswithanastasia/wp-includes/default-filters.php:1) in /home/content/26/9834126/html/pianolessonswithanastasia/wp-content/plugins/custom-sidebars/inc/external/wpmu-lib/functions-wpmulib.php on line 73

Warning: Cannot modify header information - headers already sent by (output started at /home/content/26/9834126/html/pianolessonswithanastasia/wp-includes/default-filters.php:1) in/home/content/26/9834126/html/pianolessonswithanastasia/wp-includes/pluggable.php on line 1121

I can't seem to find any information on how to fix this and I can't log into the WP dashboard in order to deactivate any plugins for testing.  Can you help? Please advise.

 

Thank you.

 

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