Editor not working

Dear people,

Thank you for this great plugin.

Can you help me with the following?

From the dashboard it’s not possible to edit events (logged in as administrator).

Error:
ei/n<@https://hmtklep.nl/wp-includes/js/dist/editor.min.js:12:94753
ei@https://hmtklep.nl/wp-includes/js/dist/editor.min.js:12:94846
Jr@https://hmtklep.nl/wp-includes/js/dist/editor.min.js:12:94638
ll@https://hmtklep.nl/wp-includes/js/dist/edit-post.min.js:7:80331
ct@https://hmtklep.nl/wp-includes/js/dist/vendor/react-dom.min.js:9:43430
os@https://hmtklep.nl/wp-includes/js/dist/vendor/react-dom.min.js:9:111136
Ur@https://hmtklep.nl/wp-includes/js/dist/vendor/react-dom.min.js:9:77645
Ir@https://hmtklep.nl/wp-includes/js/dist/vendor/react-dom.min.js:9:77573
Dr@https://hmtklep.nl/wp-includes/js/dist/vendor/react-dom.min.js:9:77434
Pr@https://hmtklep.nl/wp-includes/js/dist/vendor/react-dom.min.js:9:74429
n/Nn/<@https://hmtklep.nl/wp-includes/js/dist/vendor/react-dom.min.js:9:30173
unstable_runWithPriority@https://hmtklep.nl/wp-includes/js/dist/vendor/react.min.js:9:7431
xn@https://hmtklep.nl/wp-includes/js/dist/vendor/react-dom.min.js:9:29950
Nn@https://hmtklep.nl/wp-includes/js/dist/vendor/react-dom.min.js:9:30120
_n@https://hmtklep.nl/wp-includes/js/dist/vendor/react-dom.min.js:9:30053
Er@https://hmtklep.nl/wp-includes/js/dist/vendor/react-dom.min.js:9:72039
Rt@https://hmtklep.nl/wp-includes/js/dist/vendor/react-dom.min.js:9:48732
e@https://hmtklep.nl/wp-includes/js/dist/data.min.js:9:3515
t@https://hmtklep.nl/wp-includes/js/dist/data.min.js:9:3561
le/h/t.subscribe/o<@https://hmtklep.nl/wp-includes/js/dist/data.min.js:2:19155
se/instantiate/b</<@https://hmtklep.nl/wp-includes/js/dist/data.min.js:2:17261
p@https://hmtklep.nl/wp-includes/js/dist/data.min.js:2:7139
x/</</<@https://hmtklep.nl/wp-includes/js/dist/data.min.js:2:10555
i/</</<@https://hmtklep.nl/wp-includes/js/dist/redux-routine.min.js:9:790
C/</<@https://hmtklep.nl/wp-includes/js/dist/data.min.js:2:9384
k/</</<@https://hmtklep.nl/wp-includes/js/dist/data.min.js:2:10493
se/instantiate/r/f@https://hmtklep.nl/wp-includes/js/dist/data.min.js:2:14530
Vt/<@https://hmtklep.nl/wp-includes/js/dist/core-data.min.js:2:40590`

The page I need help with: [log in to see the link]