murmelgrumpf

Hi @bobmatyas , thanks for answering. The website’s URL is but the thing is, if you launch the site it appears absolutely correct.
The effect that I can’t see the single pages any longer shows up in the WordPress editor. When I try to open a page in edit mode, a dialogue appears and informs about an unexpected error in the editor. Below is, what the error report returns:

render/</<@https://blickaufdiewelt.de/wp-content/plugins/jetpack/_inc/blocks/editor.min.js?ver=10.2.1:24:508482
render/<@https://blickaufdiewelt.de/wp-content/plugins/jetpack/_inc/blocks/editor.min.js?ver=10.2.1:24:508403
render@https://blickaufdiewelt.de/wp-content/plugins/jetpack/_inc/blocks/editor.min.js?ver=10.2.1:24:508357
V/<@https://blickaufdiewelt.de/wp-includes/js/dist/element.min.js?ver=43a121e875f299c637e1115581bee905:2:8150
V@https://blickaufdiewelt.de/wp-includes/js/dist/element.min.js?ver=43a121e875f299c637e1115581bee905:2:8164
A@https://blickaufdiewelt.de/wp-includes/js/dist/element.min.js?ver=43a121e875f299c637e1115581bee905:2:9174
D@https://blickaufdiewelt.de/wp-includes/js/dist/element.min.js?ver=43a121e875f299c637e1115581bee905:2:8629
V@https://blickaufdiewelt.de/wp-includes/js/dist/element.min.js?ver=43a121e875f299c637e1115581bee905:2:7940
V/<@https://blickaufdiewelt.de/wp-includes/js/dist/element.min.js?ver=43a121e875f299c637e1115581bee905:2:8146
V@https://blickaufdiewelt.de/wp-includes/js/dist/element.min.js?ver=43a121e875f299c637e1115581bee905:2:8164
A@https://blickaufdiewelt.de/wp-includes/js/dist/element.min.js?ver=43a121e875f299c637e1115581bee905:2:9174
V@https://blickaufdiewelt.de/wp-includes/js/dist/element.min.js?ver=43a121e875f299c637e1115581bee905:2:8233
V@https://blickaufdiewelt.de/wp-includes/js/dist/element.min.js?ver=43a121e875f299c637e1115581bee905:2:8174
It@https://blickaufdiewelt.de/wp-includes/js/dist/blocks.min.js?ver=7ed7fe32dad771c4e0af4f56539ff156:2:42132
tr0p/Ru<@https://blickaufdiewelt.de/wp-includes/js/dist/block-editor.min.js?ver=fc8c27c6e95e7e0d59b4e344cb9ddfed:12:287778
we@https://blickaufdiewelt.de/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:84:293
zj@https://blickaufdiewelt.de/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:226:496
Th@https://blickaufdiewelt.de/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:152:225
tj@https://blickaufdiewelt.de/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:152:152
Te@https://blickaufdiewelt.de/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:146:151
Pg/<@https://blickaufdiewelt.de/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:61:68
unstable_runWithPriority@https://blickaufdiewelt.de/wp-includes/js/dist/vendor/react.min.js?ver=16.13.1:25:260
Da@https://blickaufdiewelt.de/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:60:280
Pg@https://blickaufdiewelt.de/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:61:16
ha@https://blickaufdiewelt.de/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:60:451
Ja@https://blickaufdiewelt.de/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:224:400
ch@https://blickaufdiewelt.de/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:93:81
e@https://blickaufdiewelt.de/wp-includes/js/dist/data.min.js?ver=a9e98fe3ad76884fe7909ba8348395b7:2:20891
t@https://blickaufdiewelt.de/wp-includes/js/dist/data.min.js?ver=a9e98fe3ad76884fe7909ba8348395b7:2:20958
instantiate/v</<@https://blickaufdiewelt.de/wp-includes/js/dist/data.min.js?ver=a9e98fe3ad76884fe7909ba8348395b7:2:15082
b@https://blickaufdiewelt.de/wp-includes/js/dist/data.min.js?ver=a9e98fe3ad76884fe7909ba8348395b7:2:8589
i/</</<@https://blickaufdiewelt.de/wp-includes/js/dist/redux-routine.min.js?ver=fd5f93d1f8206c65d1891cf1f898211e:2:1602
A/</<@https://blickaufdiewelt.de/wp-includes/js/dist/data.min.js?ver=a9e98fe3ad76884fe7909ba8348395b7:2:10455
L/</</<@https://blickaufdiewelt.de/wp-includes/js/dist/data.min.js?ver=a9e98fe3ad76884fe7909ba8348395b7:2:10762
dispatch@https://blickaufdiewelt.de/wp-includes/js/dist/data.min.js?ver=a9e98fe3ad76884fe7909ba8348395b7:2:9449
a/<@https://blickaufdiewelt.de/wp-includes/js/dist/redux-routine.min.js?ver=fd5f93d1f8206c65d1891cf1f898211e:2:1353
r/<@https://blickaufdiewelt.de/wp-includes/js/dist/redux-routine.min.js?ver=fd5f93d1f8206c65d1891cf1f898211e:2:9258
r@https://blickaufdiewelt.de/wp-includes/js/dist/redux-routine.min.js?ver=fd5f93d1f8206c65d1891cf1f898211e:2:9233
u/<@https://blickaufdiewelt.de/wp-includes/js/dist/redux-routine.min.js?ver=fd5f93d1f8206c65d1891cf1f898211e:2:9187
k4FQ/e.any@https://blickaufdiewelt.de/wp-includes/js/dist/redux-routine.min.js?ver=fd5f93d1f8206c65d1891cf1f898211e:2:6329
r/<@https://blickaufdiewelt.de/wp-includes/js/dist/redux-routine.min.js?ver=fd5f93d1f8206c65d1891cf1f898211e:2:9258
r@https://blickaufdiewelt.de/wp-includes/js/dist/redux-routine.min.js?ver=fd5f93d1f8206c65d1891cf1f898211e:2:9233
u/<@https://blickaufdiewelt.de/wp-includes/js/dist/redux-routine.min.js?ver=fd5f93d1f8206c65d1891cf1f898211e:2:9181

Just updated Jetpack to 10.2.1 but sadly with no effect regarding my issue.