Can’t create shortcode anymore (javascript error)

Hello,

When I want to create a shortcode with shortcoder, there is a blank page.

Here are the errors in the browser console:

jQuery.Deferred exception: Cannot read properties of undefined (reading 'value') TypeError: Cannot read properties of undefined (reading 'value')
    at Function.fg [as fromTextArea] (https://xxx/wp/wp-includes/js/codemirror/codemirror.min.js?ver=5.29.1-alpha-ee20357:22:31506)
    at d.codeEditor.initialize (https://xxx/wp/wp-admin/js/code-editor.min.js?ver=6.6.1:2:1977)
    at load_codemirror (https://xxx/app/plugins/shortcoder/admin/js/script.js?ver=6.4:79:36)
    at init (https://xxx/app/plugins/shortcoder/admin/js/script.js?ver=6.4:8:37)
    at HTMLDocument.<anonymous> (https://xxx/app/plugins/shortcoder/admin/js/script.js?ver=6.4:313:5)
    at e (https://xxx/wp/wp-includes/js/jquery/jquery.min.js?ver=3.7.1:2:27028)
    at t (https://xxx/wp/wp-includes/js/jquery/jquery.min.js?ver=3.7.1:2:27330) undefined
ce.Deferred.exceptionHook @ jquery.min.js?ver=3.7.1:2
t @ jquery.min.js?ver=3.7.1:2
setTimeout
(anonymous) @ jquery.min.js?ver=3.7.1:2
c @ jquery.min.js?ver=3.7.1:2
fireWith @ jquery.min.js?ver=3.7.1:2
fire @ jquery.min.js?ver=3.7.1:2
c @ jquery.min.js?ver=3.7.1:2
fireWith @ jquery.min.js?ver=3.7.1:2
ready @ jquery.min.js?ver=3.7.1:2
P @ jquery.min.js?ver=3.7.1:2
jquery.min.js?ver=3.7.1:2 

Uncaught TypeError: Cannot read properties of undefined (reading 'value')
    at Function.fg [as fromTextArea] (codemirror.min.js?ver=5.29.1-alpha-ee20357:22:31506)
    at d.codeEditor.initialize (code-editor.min.js?ver=6.6.1:2:1977)
    at load_codemirror (script.js?ver=6.4:79:36)
    at init (script.js?ver=6.4:8:37)
    at HTMLDocument.<anonymous> (script.js?ver=6.4:313:5)
    at e (jquery.min.js?ver=3.7.1:2:27028)
    at t (jquery.min.js?ver=3.7.1:2:27330)
fg @ codemirror.min.js?ver=5.29.1-alpha-ee20357:22
d.codeEditor.initialize @ code-editor.min.js?ver=6.6.1:2
load_codemirror @ script.js?ver=6.4:79
init @ script.js?ver=6.4:8
(anonymous) @ script.js?ver=6.4:313
e @ jquery.min.js?ver=3.7.1:2
t @ jquery.min.js?ver=3.7.1:2
setTimeout
ce.readyException @ jquery.min.js?ver=3.7.1:2
(anonymous) @ jquery.min.js?ver=3.7.1:2
e @ jquery.min.js?ver=3.7.1:2
t @ jquery.min.js?ver=3.7.1:2
setTimeout
(anonymous) @ jquery.min.js?ver=3.7.1:2
c @ jquery.min.js?ver=3.7.1:2
fireWith @ jquery.min.js?ver=3.7.1:2
fire @ jquery.min.js?ver=3.7.1:2
c @ jquery.min.js?ver=3.7.1:2
fireWith @ jquery.min.js?ver=3.7.1:2
t @ jquery.min.js?ver=3.7.1:2
setTimeout
(anonymous) @ jquery.min.js?ver=3.7.1:2
c @ jquery.min.js?ver=3.7.1:2
fireWith @ jquery.min.js?ver=3.7.1:2
fire @ jquery.min.js?ver=3.7.1:2
c @ jquery.min.js?ver=3.7.1:2
fireWith @ jquery.min.js?ver=3.7.1:2
ready @ jquery.min.js?ver=3.7.1:2
P @ jquery.min.js?ver=3.7.1:2
api-fetch.min.js?ver=4c185334c5ec26e149cc:2 
        
GET https://xxx/wp-json/wp/v2/types/shortcoder?context=edit&_locale=user 403 (Forbidden)
O @ api-fetch.min.js?ver=4c185334c5ec26e149cc:2
h @ api-fetch.min.js?ver=4c185334c5ec26e149cc:2
(anonymous) @ api-fetch.min.js?ver=4c185334c5ec26e149cc:2
P @ api-fetch.min.js?ver=4c185334c5ec26e149cc:2
(anonymous) @ api-fetch.min.js?ver=4c185334c5ec26e149cc:2
o @ api-fetch.min.js?ver=4c185334c5ec26e149cc:2
(anonymous) @ api-fetch.min.js?ver=4c185334c5ec26e149cc:2
P.method.r @ api-fetch.min.js?ver=4c185334c5ec26e149cc:2
(anonymous) @ api-fetch.min.js?ver=4c185334c5ec26e149cc:2
(anonymous) @ api-fetch.min.js?ver=4c185334c5ec26e149cc:2
o @ api-fetch.min.js?ver=4c185334c5ec26e149cc:2
(anonymous) @ api-fetch.min.js?ver=4c185334c5ec26e149cc:2
(anonymous) @ api-fetch.min.js?ver=4c185334c5ec26e149cc:2
t @ api-fetch.min.js?ver=4c185334c5ec26e149cc:2
(anonymous) @ api-fetch.min.js?ver=4c185334c5ec26e149cc:2
g @ api-fetch.min.js?ver=4c185334c5ec26e149cc:2
(anonymous) @ api-fetch.min.js?ver=4c185334c5ec26e149cc:2
(anonymous) @ api-fetch.min.js?ver=4c185334c5ec26e149cc:2
(anonymous) @ api-fetch.min.js?ver=4c185334c5ec26e149cc:2
j @ api-fetch.min.js?ver=4c185334c5ec26e149cc:2
(anonymous) @ core-data.min.js?ver=07feee0ca98b13ab617d:2
await in (anonymous)
(anonymous) @ data.min.js?ver=7c62e39de0308c73d50c:2
(anonymous) @ redux-routine.min.js?ver=a0a172871afaeb261566:9
(anonymous) @ data.min.js?ver=7c62e39de0308c73d50c:2
(anonymous) @ data.min.js?ver=7c62e39de0308c73d50c:2
(anonymous) @ data.min.js?ver=7c62e39de0308c73d50c:2
setTimeout
s @ data.min.js?ver=7c62e39de0308c73d50c:2
i @ data.min.js?ver=7c62e39de0308c73d50c:2
(anonymous) @ edit-post.min.js?ver=bf7b57a061aad9bf9020:2
(anonymous) @ data.min.js?ver=7c62e39de0308c73d50c:9
__unstableMarkListeningStores @ data.min.js?ver=7c62e39de0308c73d50c:2
(anonymous) @ data.min.js?ver=7c62e39de0308c73d50c:2
p @ data.min.js?ver=7c62e39de0308c73d50c:9
(anonymous) @ data.min.js?ver=7c62e39de0308c73d50c:9
Qe @ data.min.js?ver=7c62e39de0308c73d50c:9
Ye @ data.min.js?ver=7c62e39de0308c73d50c:9
Nt @ edit-post.min.js?ver=bf7b57a061aad9bf9020:2
hu @ react-dom.min.js?ver=18.3.1:2
xi @ react-dom.min.js?ver=18.3.1:2
bs @ react-dom.min.js?ver=18.3.1:2
vs @ react-dom.min.js?ver=18.3.1:2
gs @ react-dom.min.js?ver=18.3.1:2
ls @ react-dom.min.js?ver=18.3.1:2
S @ react-dom.min.js?ver=18.3.1:2
T @ react-dom.min.js?ver=18.3.1:2