Hello Bob,

Please update us your site's admin details so we will be able to check this issue on your site.

Login details are attached.

We've looked into the issues that have appeared and found that others are having the same issues with Third Party extensions: https://forum.joomla.org/viewtopic.php?t=960132

I'd just like to know if you're receiving issues like these frequently and if there is a plan to resolve this with you Extension?

Thanks,

Hey Bob,

I can't seem to login to the site with the provided login credentials. I have tested this on my local instance on Joomla 3.8.6 and the latest version of PayPlans and the installation is fine too, http://take.ms/x90iM

How were you able to reproduce this on your site eh?

Hi Mark,

It's probably because of the secure server we keep it on.

Basically, ever since we upgraded Joomla to 3.8.6, anytime we create a new app instance or install a new app, the pages start coming up with 'Unable to load' error message one by one.

It seems to be happening with a few more third part components as well, as seen in my link above.

The app will show the same 'Installed successfully' message, but after which, the app doesn't show up in the payplan component and instances can't be created or amended without the site going down.

We were monitoring the site whilst making the amends and it seems to be the plugins/apps whilst they're running, when they're amended or installed, it crashes the site.

Currently the site works because it was created before the joomla update, but any amends to apps in Payplans now, won't work.

Hello Bob,

Please try the solution mentioned on below forum link.
https://stackideas.com/forums/500-internal-server-error-on-joomla-3-8-6#reply-401105

Please update me that this resolve your issue or not.