I found some similar topics, but nothing that seamed related to my issu.
I have this error message in my panel. Activating Debug doesn’t show anything.
Hi Jolin,
could you please post the blueprint that contains this section?
title: Site
columns:
- width: 2/3
sections:
projet: sections/projets
- width: 1/3
sections:
pages: true
content:
type: fields
fields:
author:
label: Author
type: text
description:
label: Description
type: textarea
keywords:
label: Keywords
type: tags
copyright:
label: Copyright
type: textarea
type: pages
headline: Projets
parent: kirby.page("projets")
# template: projet
templates:
- projet
- projet-continu
empty: No project yet
limit: 30
Is your indentation exactly like what you posted?
Oups no, I fixed it in my previous post.
Ok, the blueprints looks ok now. Maybe you have an error in one of the templates projet or projet-continu. Could you please post them here as well?
projet.yml
title: Project
columns:
- width: 2/3
sections:
files:
headline: Images
template: project-image
info: "{{ file.dimensions }}"
layout: cards
size: small
image:
ratio: 3/2
cover: true
- width: 1/3
sections:
content:
type: fields
fields:
client:
type: text
width: 1/2
projet:
label: Conception
type: textarea
width: 1/2
text:
type: textarea
width: 1/2
sideImages:
type: files
template: side-image
projet-continu.yml
title: Projet-continu
extends: pages/projetI meant the php templates
Oh! Both are pretty similar:
<?php snippet('head') ?>
<?php snippet('projet-poster') ?>
<?php snippet('menu') ?>
<?php snippet('projet-content') ?> OR <?php snippet('projet-content-continu') ?>
<?php snippet('projet-suivant') ?>
<?php snippet('foot') ?>
Hm, those look rather innocent as well, even if in some places if statements would make the code more reliable.
When you updated, did you clear the media folder?
I just deleted the entire media folder, and the same error appears. 
I tried doing a blueprint with only
title: Site
sections:
projet: sections/projets
But no more luck.
Here’s the console log
Error: The JSON response from the API could not be parsed
onParserError — app.js:1:22240
(fonction anonyme) — app.js:1:17486
asyncFunctionResume
[native code]
promiseReactionJobWithoutPromiseHm, I’m a bit lost. Since it works locally, I would assume that there’s some server side configuration that’s causing this. What about server side caching? Have you tried to purge/disable that?
I’m afraid I don’t know how to do that. I contacted Fortrabbit; will keep you posted if they have any clue!
I played a bit with the code this morning.
If I remove the following from sections/projets
parent: kirby.page("projets")
I get it kinda working, but not showing any projects. Dont know if it help!
Does the given page exist at the path? Is the folder name really projet?
Yes, I have both the /blueprints/pages/projets.yml and content/01_projets in place.
I found this in the Docs, but it doesn’t seams to relate unfortunately 
If you open Developer Tools in the browser, and inspect the JSON/Panel responses, what is their content? There could be your answer; I remember debugging some very old project of mine, where expected JSON kept failing just to discover that response was actually misformatted because of some PHP errors
Hey @adamkiis, thanks for the suggestion. I find nothing that seams weird.
Here’s the HTML from Inspect Elements.
<section class="k-pages-section k-section k-section-name-projet"><header class="k-section-header"><h2 class="k-headline"> <!----></h2><!----></header><div data-theme="negative" class="k-box"><div data-size="small" class="k-text"><strong> The section "projet" could not be loaded: </strong> The JSON response from the API could not be parsed </div></div></section>
<header class="k-section-header"><h2 class="k-headline"> <!----></h2><!----></header>
<div data-theme="negative" class="k-box"><div data-size="small" class="k-text"><strong> The section "projet" could not be loaded: </strong> The JSON response from the API could not be parsed </div></div>
<div data-size="small" class="k-text"><strong> The section "projet" could not be loaded: </strong> The JSON response from the API could not be parsed </div>
<strong> The section "projet" could not be loaded: </strong>
The JSON response from the API could not be parsed
<div data-size="small" class="k-text"><strong> The section "projet" could not be loaded: </strong> The JSON response from the API could not be parsed </div>
<div data-theme="negative" class="k-box"><div data-size="small" class="k-text"><strong> The section "projet" could not be loaded: </strong> The JSON response from the API could not be parsed </div></div>
<section class="k-pages-section k-section k-section-name-projet"><header class="k-section-header"><h2 class="k-headline"> <!----></h2><!----></header><div data-theme="negative" class="k-box"><div data-size="small" class="k-text"><strong> The section "projet" could not be loaded: </strong> The JSON response from the API could not be parsed </div></div></section>
And the Console log
Error: The JSON response from the API could not be parsed
onParserError — app.js:1:22240
(fonction anonyme) — app.js:1:17486
asyncFunctionResume
[native code]
promiseReactionJobWithoutPromise
onError — app.js:1:22082
(fonction anonyme) — app.js:1:17731
asyncFunctionResume
(fonction anonyme)
promiseReactionJobWithoutPromise
app.js:1:11815
Does that helps?