admin-ajax.php 500 internal server error when update a translation

Hello,
Error 500 is very general error, and the reasons for this error appearance can be related to a vast array of possibilities.
Please check your error log for the server, for PHP and if you have enabled debugging in WordPress – check that log as well.
If you don’t have any logs, you can enable debugging by setting this options in wp-config.php

// Turn debugging on
define('WP_DEBUG', true);

// Tell WordPress to log everything to /wp-content/debug.log
define('WP_DEBUG_LOG', true);

// Turn off the display of error messages on your site
define('WP_DEBUG_DISPLAY', false);

// For good measure, you can also add the follow code, which will hide errors from being displayed on-screen
@ini_set('display_errors', 0);

and then attempting to reproduce the error by doing the same actions as before.

As always, if you need any more help regarding this, it is recommended to open a new post in our forum at wpml.org where our specialists can help you debug this further.

I am marking this ticket as resolved.
I hope that your problem was resolved in our forum @ wpml.org.

Hi! I have the same error when I click in “MARK THIS UNIT COMPLETE”:

jquery.js?ver=1.12.4:4 POST https://my_site/wp-admin/admin-ajax.php 500 (Internal Server Error)
send @ jquery.js?ver=1.12.4:4
ajax @ jquery.js?ver=1.12.4:4
(anonymous) @ course.js?ver=2.3.1.4:2344
dispatch @ jquery.js?ver=1.12.4:3
r.handle @ jquery.js?ver=1.12.4:3

the image load no change to “check image” and i dont realice updates.
Help please =(

@luuigi you are getting error 500. Did you enable the debug log in WordPress, as I have suggested above?
Usually, these errors are being logged in the log and then we can find more information about the problem.
Please provide more information so that we could be of better help.

Hi @botzev Thanyou!

yes , I get messages like this:

10.56.9.8 [23/Jan/2017:08:13:59 -0600] “POST /imiu/wp-admin/admin-ajax.php HTTP/1.1” 200 15289
10.56.9.8 [23/Jan/2017:08:12:24 -0600] “POST /imiu/wp-admin/admin-ajax.php HTTP/1.1” 200 78
10.56.9.8 [23/Jan/2017:08:10:11 -0600] “POST /imiu/wp-admin/admin-ajax.php HTTP/1.1” 200 78

But these are not an error messages.
These are normal requests to admin-ajax.php which does some functions in the background.
At this time it would be better to suggest you too to open a new ticket in our forum at wpml.org so that we can investigate more in-depth the issue.

After enabling debugging like stated above, I discovered the problem was in a Yith-plugin which caused the error.
After disabling the (apparent) faulty Yith-plugin, everything worked like a charm.