Support

March 17, 2014 at 2:43 pm

Hi Rob,

Whenever all the payment options disappear like this it is usually a JavaScript error happening somewhere early on the page. A quick way to find what’s causing the JavaScript error is by checking the page in Firebug or the Chrome Inspector. From there you should be able to determine if the script that’s throwing the error is from a plugin or the theme.

March 25, 2014 at 7:34 pm

Hi Rob,

It certainly does help, which is why I said that a plugin or theme is likely the cause of the error. Let’s break down the warning message and interpret what it’s actually saying:

If the error message says:

PHP Warning: session_start() Cannot send session cache limiter – headers already sent by (output started at /wp-includes/functions.php:2908) in /wp-content/plugins/event-espresso/espresso.php on line 55

Then the problem is at line #2908 of /wp-includes/functions.php, not line #55 of espresso.php. In this scenario, line #55 of espresso.php is the victim. It is being affected by something triggering some WordPress error output from line #2908 of functions.php of WordPress core.

Line #2908 of functions.php reads:

trigger_error( sprintf( __('%1$s is <strong>deprecated</strong> since version %2$s! Use %3$s instead.'), $function, $version, $replacement ) );

So from that, it looks like there’s a deprecated function being called (likely from another plugin or a theme), WordPress is trying to throw an error (because wp-debug is turned on), but it cannot because there’s also a session issue.

I mentioned before it doesn’t take much to throw an error like this one. (A single space in the wrong place will do). If any files were edited on the server, which includes any updates or modifications to any files that WordPress loads up, it could be the cause of the issue you are seeing.

More troubleshooting info here:

http://codex.wordpress.org/FAQ_Troubleshooting#How_do_I_solve_the_Headers_already_sent_warning_problem.3F

March 28, 2014 at 7:00 am

Is it possible to get your login details in order to look into this?

If so, please send them via http://staging.eventespresso.com/send-login-details/

NOTE: login details need to be Admin level and FTP details are appreciated.

March 28, 2014 at 10:50 am

Hi Rob,

I spent a fair amount of time troubleshooting this and this looks like a server issue to me. Which makes sense because nothing has changed in the Event Espresso software since the time this was working for you. The good news is I’m pretty sure I found which function was affected.

Whatever did change on the server affected a function in Event Espresso that checks for whether an SSL certificate is installed for the domain. I added a little “Espresso overrides plugin” that disables the function and the payment settings page loads up fine.

If anyone else starts experiencing the same issue they can make a little snippets plugin and add this function to it as a work around:

if (!function_exists('espresso_check_ssl')) {
	function espresso_check_ssl(){
		return false;
	}
}