dyszczo

Hi @rcblizzard,

I’s good that you’ve enabled the WP_DEBUG option but unfortunately the message you’ve got is about the plugin which stared writing to the output before any other plugins could set apropriate http headers output started at /home/…/public_html/wp-content/advanced-cache.php:22.
I’ts probably due to warnings dumped by advanced-cache.php straigh to the output console and it’s a bug in the advanced-cache plugin.

From what I’ve read in this thread the first error message was about “<br>Error encountered: (0) cURL error 28: Operation timed out after 10000 milliseconds with 0 bytes received” and I think this should be our main concern.
I’ts bad that the plugin goes into infinite loop after the error and the way of reacting to that error is a problem. Although it’s hard to be sure that it’s a flexible shipping problem and the reason for it it’s because flexible shipping does not use curl. There is no curl execution in the flexible-shipping plugin code.
Flexible shipping is a plugin that facilitates shipping for other plugins so if any of the integrating plugins have problems it may seem that the FS caused it.
If the curl problem has not been solved yet I would strongly suggest that you should try to find which of the shipping plugins you have is causing it. You can try it by means of:
– disabling shipping plugins
– enabling FS
– if it explodes then try to disable more plugins first so as to have an active FS plugin which is not getting into loop
– activating the disabled plugin one by one to find the plugin that really caused the problem.

It’s worth mentioning that curl 28 error is usually caused by the server firewall that prevents some shipping plugin apis to connect with the shipping provider.

Hello,

Could you please enable debug.log in your WordPress and check if there are any messages? It is a very important piece of information, necessary to find the problem.

Flexible Shipping is compatible with the latest version of WooCommerce (3.3.4). We have tested it on different versions of WP and PHP and everything looks fine.

Also, please make sure that you are adding a shipping method the right way, as shown in this quick video tutorial: https://www.youtube.com/watch?v=qsFvYoiNDgU

• This reply was modified 6 years, 11 months ago by dyszczo.