Nimbus disappears

Hello !

I need your help,
Since i’ve made the nimbus update, it disappears in the live customizer…

Thanks for your help.

### Begin System Info (Generated 2020-09-17 10:12:35) ###
———— SITE INFO
Site URL: https://formulaires.delta-assurances.net
Home URL: http://formulaires.delta-assurances.net
Multisite: No

———— USER BROWSER
Platform: Windows
Browser Name: Chrome
Browser Version: 85.0.4183.102

———— WORDPRESS CONFIG
WP Version: 5.3.4
Language: fr_FR
Permalink Structure: /%year%/%monthnum%/%day%/%postname%/
Active Theme: Twenty Twenty 1.5
Show On Front: page
Page On Front: Accueil (#2)
Page For Posts: Unset
ABSPATH: /mnt/data/www/formulaires.delta-assurances.net/
WP_DEBUG: Disabled
WP Memory Limit: 40MB

———— NIMBLE CONFIGURATION
Version: 2.1.9
Upgraded From: 2.1.7
Started With: 1.10.6

———— WP ACTIVE PLUGINS
Check Email: 0.6.2
Classic Editor: 1.6
Cookie Notice: 1.3.2
Duplicate Page: 4.3
GA Google Analytics: 20200815
Gravity Forms: 2.4.20
Gravity Forms Entries in Excel: 1.8.4
GravityWP – CSS Selector: 1.0.1
Nimble Page Builder: 2.1.9
Quiz And Survey Master: 7.1.2
Redirection: 4.8
WP Mail SMTP: 2.3.1
WP Popups Lite: 2.0.3.6
WP Super Cache: 1.7.1

———— WP INACTIVE PLUGINS
Akismet Anti-Spam: 4.1.6
Redux: 4.1.18

———— WEBSERVER CONFIG
PHP Version: 7.3.4-2
MySQL Version: 5.5.5
Webserver Info: Apache/2.4.38 (Debian)
Writing Permissions: OK

———— PHP CONFIG
Memory Limit: 256M
Upload Max Size: 20M
Post Max Size: 8M
Upload Max Filesize: 20M
Time Limit: 30
Max Input Vars: 1000
Display Errors: N/A
PHP Arg Separator: &
PHP Allow URL File Open: 1

### End System Info ###