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Hi Artem,

Just a quick note — our live site is running behind CloudFront caching, so it’s not recommended to run theme-switching or deactivation tests during the day. These actions can temporarily affect production (I actually woke up to find the Flatsome theme missing).

You can safely try again after 00:00 (midnight), when the site traffic and caching impact are minimal.

In the meantime, I’ll handle the test myself with the theme disabled to confirm if the issue is related to Flatsome, and I’ll get back to you with the results.

Thank you for understanding,

Daniel – Onevent.ro

Site URL

https://harmonie-eilereng.com/he-simple-page

Page Link

https://harmonie-eilereng.com/

Username

headmin

Pass

U9oa5)LGyQOlwiXHt(UpTyYz

Ashan,

The error:

[10-Nov-2025 15:34:49 UTC] PHP Fatal error:  Uncaught DompdfException: Parent table not found for table cell in /homepages/11/d23439710/htdocs/harmonie_com/cms/wp-content/plugins/eventon-pdfer/includes/dompdf/vendor/dompdf/dompdf/src/FrameReflower/TableCell.php:40

Stack trace:

#0 /homepages/11/d23439710/htdocs/harmonie_com/cms/wp-content/plugins/eventon-pdfer/includes/dompdf/vendor/dompdf/dompdf/src/FrameDecorator/AbstractFrameDecorator.php(905): DompdfFrameReflowerTableCell->reflow()

#1 /homepages/11/d23439710/htdocs/harmonie_com/cms/wp-content/plugins/eventon-pdfer/includes/dompdf/vendor/dompdf/dompdf/src/FrameReflower/TableRow.php(56): DompdfFrameDecoratorAbstractFrameDecorator->reflow()

#2 /homepages/11/d23439710/htdocs/harmonie_com/cms/wp-content/plugins/eventon-pdfer/includes/dompdf/vendor/dompdf/dompdf/src/FrameDecorator/AbstractFrameDecorator.php(905): DompdfFrameReflowerTableRow->reflow()

#3 /homepages/11/d23439710/htdocs/harmonie_com/cms/wp-content/plugins/eventon-pdfer/includes/dompdf/vendor/dompdf/dompdf/src/FrameReflower/Block.php(865): DompdfFrameDecoratorAbstractFrameDecorator->reflow()

#4 /homepages/11/d23439710/htdocs/harmonie_com/cms/wp-content/plugins/eventon-pdfer/includes/dompdf/vendor/dompdf/dompdf/src/FrameDecorator/AbstractFrameDecorator.php(905): DompdfFrameReflowerBlock->reflow()

#5 /homepages/11/d23439710/htdocs/harmonie_com/cms/wp-content/plugins/eventon-pdfer/includes/dompdf/vendor/dompdf/dompdf/src/FrameReflower/Block.php(865): DompdfFrameDecoratorAbstractFrameDecorator->reflow()

#6 /homepages/11/d23439710/htdocs/harmonie_com/cms/wp-content/plugins/eventon-pdfer/includes/dompdf/vendor/dompdf/dompdf/src/FrameDecorator/AbstractFrameDecorator.php(905): DompdfFrameReflowerBlock->reflow()

#7 /homepages/11/d23439710/htdocs/harmonie_com/cms/wp-content/plugins/eventon-pdfer/includes/dompdf/vendor/dompdf/dompdf/src/FrameReflower/Block.php(865): DompdfFrameDecoratorAbstractFrameDecorator->reflow()

#8 /homepages/11/d23439710/htdocs/harmonie_com/cms/wp-content/plugins/eventon-pdfer/includes/dompdf/vendor/dompdf/dompdf/src/FrameDecorator/AbstractFrameDecorator.php(905): DompdfFrameReflowerBlock->reflow()

#9 /homepages/11/d23439710/htdocs/harmonie_com/cms/wp-content/plugins/eventon-pdfer/includes/dompdf/vendor/dompdf/dompdf/src/FrameReflower/Block.php(865): DompdfFrameDecoratorAbstractFrameDecorator->reflow()

#10 /homepages/11/d23439710/htdocs/harmonie_com/cms/wp-content/plugins/eventon-pdfer/includes/dompdf/vendor/dompdf/dompdf/src/FrameDecorator/AbstractFrameDecorator.php(905): DompdfFrameReflowerBlock->reflow()

#11 /homepages/11/d23439710/htdocs/harmonie_com/cms/wp-content/plugins/eventon-pdfer/includes/dompdf/vendor/dompdf/dompdf/src/FrameReflower/Block.php(865): DompdfFrameDecoratorAbstractFrameDecorator->reflow()

#12 /homepages/11/d23439710/htdocs/harmonie_com/cms/wp-content/plugins/eventon-pdfer/includes/dompdf/vendor/dompdf/dompdf/src/FrameDecorator/AbstractFrameDecorator.php(905): DompdfFrameReflowerBlock->reflow()

#13 /homepages/11/d23439710/htdocs/harmonie_com/cms/wp-content/plugins/eventon-pdfer/includes/dompdf/vendor/dompdf/dompdf/src/FrameReflower/Block.php(865): DompdfFrameDecoratorAbstractFrameDecorator->reflow()

#14 /homepages/11/d23439710/htdocs/harmonie_com/cms/wp-content/plugins/eventon-pdfer/includes/dompdf/vendor/dompdf/dompdf/src/FrameDecorator/AbstractFrameDecorator.php(905): DompdfFrameReflowerBlock->reflow()

#15 /homepages/11/d23439710/htdocs/harmonie_com/cms/wp-content/plugins/eventon-pdfer/includes/dompdf/vendor/dompdf/dompdf/src/FrameReflower/Page.php(142): DompdfFrameDecoratorAbstractFrameDecorator->reflow()

#16 /homepages/11/d23439710/htdocs/harmonie_com/cms/wp-content/plugins/eventon-pdfer/includes/dompdf/vendor/dompdf/dompdf/src/FrameDecorator/AbstractFrameDecorator.php(905): DompdfFrameReflowerPage->reflow()

#17 /homepages/11/d23439710/htdocs/harmonie_com/cms/wp-content/plugins/eventon-pdfer/includes/dompdf/vendor/dompdf/dompdf/src/Dompdf.php(808): DompdfFrameDecoratorAbstractFrameDecorator->reflow()

#18 /homepages/11/d23439710/htdocs/harmonie_com/cms/wp-content/plugins/eventon-pdfer/includes/class-pdfer.php(38): DompdfDompdf->render()

#19 /homepages/11/d23439710/htdocs/harmonie_com/cms/wp-content/plugins/eventon-pdfer/includes/class-ajax.php(44): EVO_PDF_generator->generate_pdf()

#20 /homepages/11/d23439710/htdocs/harmonie_com/cms/wp-includes/class-wp-hook.php(324): evopdf_ajax->generate_pdf()

#21 /homepages/11/d23439710/htdocs/harmonie_com/cms/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters()

#22 /homepages/11/d23439710/htdocs/harmonie_com/cms/wp-includes/plugin.php(517): WP_Hook->do_action()

#23 /homepages/11/d23439710/htdocs/harmonie_com/cms/wp-admin/admin-ajax.php(192): do_action()

#24 {main}

  thrown in /homepages/11/d23439710/htdocs/harmonie_com/cms/wp-content/plugins/eventon-pdfer/includes/dompdf/vendor/dompdf/dompdf/src/FrameReflower/TableCell.php on line 40

Hello,

Thank you for your messages!

I am going to escalate this ticket to development to help in here. Please allow us some time to address this, and we truly appreciate your patience. Thank you for being a valued EventON customer!

Additionally, if your site has any IP blocking or security restrictions in place, kindly disable them temporarily to facilitate our support process.

I switched the theme and only left EventON enabled, however it still doesn’t switch the theme:

Do I need to clear a cache somewhere?

Hello,

Could you try upgrade PHP to 8+? I believe that the issue is caused by an outdated PHP version.

Hello,

EventON shows any other shortcodes you add to Event Details the same way as it shows Gutenberg elements. However, please go to EventON > Advanced > try a different Select calendar event content filter type.

Hi Artem,

Just following up to ask if you’ve had a chance to look into this issue.

When do you think I could expect a reply or some feedback?

Thank you,

Daniel – Onevent.ro

Artem,

Yes, please do — that would be great.

I’ve already followed all the troubleshooting steps on my side (as shown in the screenshots), but the issue persists even after marking the WooCommerce order as Completed.

It seems the ActionUser Plus hook doesn’t trigger automatically after order completion.

Looking forward to your test results.

Thank you,

Daniel – Onevent.ro

I renamed the file and also cleared the cache. Single Event pages are working now. Please check and let me know.