My site keeps crashing, giving a 404

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1

I’m using Concrete5 5.6.3.5 and my AWS EC2 instance is running PHP 5.5.9. In the past week, my site has been going down intermittently, displaying a 404 Not Found nginx/1.10.1 error. If I reboot the AWS instance, the site comes back (sometimes only for 5 minutes, sometimes for 5 hours). I’ve checked the Concrete5 logs and I don’t see anything except two types of errors we’ve had since 2018 that never caused us issues before:
Exception Occurred: /var/www/html/site/updates/concrete5.6.3.5_remote_updater/concrete/core/libraries/view.php:994 File /var/www/html/site/updates/concrete5.6.3.5_remote_updater/concrete/themes/cpg/view.php not found. All themes need default.php and view.php files in them. Consult concrete5 documentation on how to create these files. (0)

#0 /var/www/html/site/updates/concrete5.6.3.5_remote_updater/concrete/dispatcher.php(264): Concrete5_Library_View->render(Object(Page))
#1 /var/www/html/site/concrete/startup/updated_core_check.php(6): require(‘/var/www/html/s…’)
#2 /var/www/html/site/concrete/dispatcher.php(14): require(‘/var/www/html/s…’)
#3 /var/www/html/site/index.php(6): require(‘/var/www/html/s…’)
#4 {main}

Exception Occurred: /var/www/html/site/updates/concrete5.6.3.5_remote_updater/concrete/core/controllers/blocks/form.php:258 Oops, something is wrong with the form you posted (it doesn’t have a question set id). (0)

#0 /var/www/html/site/updates/concrete5.6.3.5_remote_updater/concrete/core/models/block.php(411): Concrete5_Controller_Block_Form->action_submit_form()
#1 /var/www/html/site/updates/concrete5.6.3.5_remote_updater/concrete/startup/process.php(358): Concrete5_Model_Block->passThruBlock(‘submit_form’)
#2 /var/www/html/site/updates/concrete5.6.3.5_remote_updater/concrete/dispatcher.php(253): require(‘/var/www/html/s…’)
#3 /var/www/html/site/concrete/startup/updated_core_check.php(6): require(‘/var/www/html/s…’)
#4 /var/www/html/site/concrete/dispatcher.php(14): require(‘/var/www/html/s…’)
#5 /var/www/html/site/index.php(6): require(‘/var/www/html/s…’)
#6 {main}
I’ve checked AWS which shows a higher-than-usual CPU during the problem period but it’s still only 38%. I tried clearing the Concrete5 cache - no luck. Does anyone have any ideas on what the issue could be? TIA

2

I’d check the nginx logs unless you’ve made changes to your Concrete site recently.

3

The nginx log shows these errors, over and over again: 09 [error] 927#927: *15640 open() “/usr/share/nginx/html/50x.html” failed (2: No such file or directory)
request: “GET /index.php?cID=434&stackID=446&bID=3688&btask=passthru_stack&ccm_token=1714670259:f9a02f7e8a451e5c760c3e87be103a16&method=submit_form&ccm_paging_p_b2065=10 HTTP/1.1”, upstream: “fastcgi://unix:/var/run/php5-fpm.sock”

2024/07/01 14:23:28 [error] 927#927: *20353 connect() to unix:/var/run/php5-fpm.sock failed (11: Resource temporarily unavailable) while connecting to upstream…request: “GET /index.php?cID=434&stackID=446&bID=3688&btask=passthru_stack&ccm_token=1714785224:5e7bab193c7ffcc89adbc9fd1b52c4e3&method=submit_form&ccm_paging_p_b2065=31 HTTP/1.1”, upstream: “fastcgi://unix:/var/run/php5-fpm.sock:”

Any recommendations for next steps?

4

Does your theme have a view.php? There seems to be an error about that.

As a side note, as I’m sure you’re aware, this is a pretty old version of Concrete and an end of life version of PHP so it might be a good time to consider a rebuild in newer Concrete + PHP.