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Drupal Ajax error 500 – Let’s fix it

by | Feb 21, 2021

Isn’t it annoying to see the “drupal ajax error 500” error plaguing your website?

This is one of the common Drupal errors you will encounter while running a website.

This error occurs due to many reasons that include insufficient memory, bad permissions, and so on.

Here at Bobcares, we often receive requests to resolve drupal errors as a part of our Server Management Services for web hosts and online service providers.

Today, let’s discuss the different causes for this error to occur and see how our Support Engineers fix it.

 

Different causes for drupal ajax error 500 to occur

Let’s now look into the different reasons that cause this error.

 

1. Insufficient memory

If there isn’t sufficient memory to run the process it causes this error to occur.

So it is better to set a greater memory in the php.ini file. We can also set this memory limit in the .htaccess file as well.

 

2. Bad permissions

Bad permissions are one of the most common reasons that cause errors in the website.

Even, for drupal ajax error 500 to occur, improper permissions also can be one of the reasons.

 

3. Broken modules

Customers do enable modules on the website for better performance. In case, if these modules break then it will create a problem without the insight of the website owner.

So, it is best to uninstall the module and then get it re-installed and check if it was causing an error.

 

How we fix this drupal ajax error 500?

One of our customers was trying to install Drupal Open Enterprise and received an error message as shown below:

drupal ajax error 500

Let’s now see how our Support Engineers fix this error.

First, we started to troubleshoot the error by increasing the PHP parameters. We increase the memory_limit in the php.ini file.

Here are the parameters that we set in the php.ini file.

max_execution_time = 180
max_input_time = 180
max_input_nesting_level = 300
memory_limit = 512M

And then we added the below line in .htaccess file

php_value auto_append_file none

Next, we verified the permission of sites/default/settings.php and sites/default folder.

Browsing to the folder where drupal was extracted we made a copy of sites/default/default.settings.php to sites/default/settings.php

$ cp sites/default/default.settings.php sites/default/settings.php

And then ensured permissions were set correctly on both the paths by running the command.

$ chmod a+w sites/default/settings.php
$ chmod a+w sites/default

After the changes, we were able to install drupal without any error.

[Need any assistance in fixing drupal error? – We’ll are always there to help you]

 

Conclusion

In short, the drupal ajax error 500 occurs due to various reasons like insufficient memory, bad permissions, and broken modules. Today, we discussed the different reasons that cause this error and saw how our Support Engineers fix it.

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