On the content template "Lehrgänge 2023" the problem occurs due to 100 of conditional blocks.
The issue was with one of the conditoinal block used with the FUTURE_DAY() function and that function requires some value but it has conditional block and used FUTURE_DAY() without any value as you can see with the following code:
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<div class="wp-block-kadence-column kadence-column129031_78da6c-11 inner-column-1"><div class="kt-inside-inner-col"><!-- wp:kadence/advancedheading {"level":3,"uniqueID":"129031_5eb4ec-63","markBorder":"","markBorderStyles":[{"top":[null,"",""],"right":[null,"",""],"bottom":[null,"",""],"left":[null,"",""],"unit":"px"}],"tabletMarkBorderStyles":[{"top":[null,"",""],"right":[null,"",""],"bottom":[null,"",""],"left":[null,"",""],"unit":"px"}],"mobileMarkBorderStyles":[{"top":[null,"",""],"right":[null,"",""],"bottom":[null,"",""],"left":[null,"",""],"unit":"px"}],"dynamicAttributes":{"toolsetDSVersion":"257000"}} -->
<h3 class="kt-adv-heading129031_5eb4ec-63 wp-block-kadence-advancedheading" data-kb-block="kb-adv-heading129031_5eb4ec-63">Umbuchung gewünscht?</h3>
<!-- /wp:kadence/advancedheading --><!-- wp:paragraph {"dynamicAttributes":{"toolsetDSVersion":"257000"}} -->
<p>Sie möchten von einer bestehenden Präsenz- zu einer Online-Teilnahme oder umgekehrt umbuchen? Dies ist bis zu 14 Tage vor dem Seminar kostenfrei möglich.<br>Danach ist eine Umbuchung von Präsenz-Teilnahme auf Webinar-Teilnahme weiterhin möglich – es wird dann aber der Präsenzpreis berechnet.</p>
<!-- /wp:paragraph --></div></div>
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<div class="wp-block-kadence-column kadence-column129031_6e4ed7-5d inner-column-2"><div class="kt-inside-inner-col"><!-- wp:paragraph {"dynamicAttributes":{"toolsetDSVersion":"257000"}} -->
<p id="umbuchung"></p>
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<div class="wp-block-kadence-modal alignnone kt-modal-linkalign-right"><div id="kt-target-modal129031_fc93d7-31" class="kb-modal-content129031_fc93d7-31 kadence-block-pro-modal kt-m-animate-in-fadeup kt-m-animate-out-fadeout" aria-hidden="true"><div class="kt-modal-overlay" tabindex="-1" data-modal-close="true"><div class="kt-modal-container kt-modal-height-fittocontent kt-close-position-inside" role="dialog" aria-modal="true"><button class="kt-modal-close" aria-label="Close Modal" data-modal-close="true"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" xmlns="<em><u>hidden link</u></em>" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><line x1="18" y1="6" x2="6" y2="18"></line><line x1="6" y1="6" x2="18" y2="18"></line></svg></button><div id="kt-modal129031_fc93d7-31-content" class="kt-modal-content"><!-- wp:kadence/advancedheading {"level":3,"uniqueID":"_06bbdf-2e","markBorder":"","markBorderStyles":[{"top":[null,"",""],"right":[null,"",""],"bottom":[null,"",""],"left":[null,"",""],"unit":"px"}],"tabletMarkBorderStyles":[{"top":[null,"",""],"right":[null,"",""],"bottom":[null,"",""],"left":[null,"",""],"unit":"px"}],"mobileMarkBorderStyles":[{"top":[null,"",""],"right":[null,"",""],"bottom":[null,"",""],"left":[null,"",""],"unit":"px"}],"dynamicAttributes":{"toolsetDSVersion":"251000"}} -->
<h3 class="kt-adv-heading_06bbdf-2e wp-block-kadence-advancedheading" data-kb-block="kb-adv-heading_06bbdf-2e">Umbuchung von Präsenz- zu Online-Teilnahme und umgekehrt</h3>
<!-- /wp:kadence/advancedheading --><!-- wp:paragraph {"dynamicAttributes":{"toolsetDSVersion":"251000"}} -->
<p>Wir bieten Ihnen größtmögliche Flexibilität: Sie können nach erfolgter Präsenzbuchung bis zu 14 Tage vor dem Seminar kostenfrei auf eine Webinar-Teilnahme umbuchen (oder umgekehrt von online auf Präsenzteilnahme zum Präsenzpreis bei verfügbaren Präsenzplätzen).<br>Danach ist eine Umbuchung von Präsenz-Teilnahme auf Webinar-Teilnahme weiterhin möglich – es wird dann aber der Präsenzpreis berechnet. </p>
<!-- /wp:paragraph --><!-- wp:paragraph {"dynamicAttributes":{"toolsetDSVersion":"251000"}} -->
<p><a href="<em><u>hidden link</u></em>"></a></p>
<!-- /wp:paragraph --><!-- wp:formidable/simple-form {"formId":"205"} -->
<div>[formidable id="205"]</div>
<!-- /wp:formidable/simple-form --></div></div></div></div><button class="kt-modal-label-show kt-blocks-modal-link" data-modal-open="kt-target-modal129031_fc93d7-31"><span class="kt-blocks-modal-link-inner">Umbuchung melden</span></button></div>
<!-- /wp:kadence/modal --></div></div>
<!-- /wp:kadence/column --><!-- /wp:kadence/rowlayout -->[/wpv-conditional]
The second tier support set FUTURE_DAY() value as FUTURE_DAY(-3) which is used by you for other conditional statements. Please check all conditional statements where you use FUTURE_DAY () function and change the conditional statement as per your requirement as you will be able to access the content template edit page now and edit the conditional statements using blocks.
Thanks.
