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Hello.
I have some problems with your pluguins:

Warning: session_start(): The session id is too long or contains illegal characters, valid characters are a-z, A-Z, 0-9 and '-,' in /home/csclacam/public_html/wp-content/plugins/facebook-publish/lib/class/hybridauth/Hybrid/Storage.php on line 21

Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /home/csclacam/public_html/wp-content/plugins/facebook-publish/lib/class/hybridauth/Hybrid/Storage.php:21) in /home/csclacam/public_html/wp-content/plugins/facebook-publish/lib/class/hybridauth/Hybrid/Storage.php on line 21

Warning: Unknown: The session id is too long or contains illegal characters, valid characters are a-z, A-Z, 0-9 and '-,' in Unknown on line 0

Warning: Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/tmp) in Unknown on line 0

I’m on PHP 5.5 and APache 2.4.
It was working great until now… Don’t know what update may have cause that…
Any idea?
Thanks.

https://wordpress.org/plugins/facebook-publish/