News WebPart not working

%3CLINGO-SUB%20id%3D%22lingo-sub-1984678%22%20slang%3D%22en-US%22%3ENews%20WebPart%20not%20working%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-1984678%22%20slang%3D%22en-US%22%3E%3CP%3EWhen%20I%20try%20to%20add%20a%20new%20News%20Article%20on%20a%20communication%20site%2C%20the%20upcoming%20page%20is%20blocked.%20You%20cannot%20even%20click%20cancel%20or%20the%20upper%20right%20cross%20to%20close%20the%20form.%20Nothing%20happens.%3C%2FP%3E%3CP%3E%3CSPAN%20class%3D%22lia-inline-image-display-wrapper%20lia-image-align-inline%22%20image-alt%3D%22newsnotworking.png%22%20style%3D%22width%3A%20628px%3B%22%3E%3CIMG%20src%3D%22https%3A%2F%2Ftechcommunity.microsoft.com%2Ft5%2Fimage%2Fserverpage%2Fimage-id%2F240128i50DAD0F12AF42D3B%2Fimage-size%2Flarge%3Fv%3D1.0%26amp%3Bpx%3D999%22%20role%3D%22button%22%20title%3D%22newsnotworking.png%22%20alt%3D%22newsnotworking.png%22%20%2F%3E%3C%2FSPAN%3E%3C%2FP%3E%3CP%3EThe%20console%20shows%20a%20lot%20of%20errors%3A%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3CP%3E%3CSPAN%20class%3D%22lia-inline-image-display-wrapper%20lia-image-align-inline%22%20image-alt%3D%22newsnotworking3.png%22%20style%3D%22width%3A%20999px%3B%22%3E%3CIMG%20src%3D%22https%3A%2F%2Ftechcommunity.microsoft.com%2Ft5%2Fimage%2Fserverpage%2Fimage-id%2F240132iEEAC0CB114913143%2Fimage-size%2Flarge%3Fv%3D1.0%26amp%3Bpx%3D999%22%20role%3D%22button%22%20title%3D%22newsnotworking3.png%22%20alt%3D%22newsnotworking3.png%22%20%2F%3E%3C%2FSPAN%3E%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3CP%3EYou%20can%20also%20not%20choose%20one%20of%20the%20three%20templates.%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3CP%3EWhat%20is%20also%20remarkable%20is%20that%20the%20start%20page%20of%20this%20fresh%20communication%20site%20(not%20published)%20is%20reporting%20errors%20in%20the%20console%3A%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3CP%3E%3CSPAN%20class%3D%22lia-inline-image-display-wrapper%20lia-image-align-inline%22%20image-alt%3D%22newsnotworking2.png%22%20style%3D%22width%3A%20999px%3B%22%3E%3CIMG%20src%3D%22https%3A%2F%2Ftechcommunity.microsoft.com%2Ft5%2Fimage%2Fserverpage%2Fimage-id%2F240133i134AC3A125B9F56C%2Fimage-size%2Flarge%3Fv%3D1.0%26amp%3Bpx%3D999%22%20role%3D%22button%22%20title%3D%22newsnotworking2.png%22%20alt%3D%22newsnotworking2.png%22%20%2F%3E%3C%2FSPAN%3E%3C%2FP%3E%3CP%3EWe%20are%20completely%20stuck%20here.%20Please%20have%20a%20look%20into%20it.%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-LABS%20id%3D%22lingo-labs-1984678%22%20slang%3D%22en-US%22%3E%3CLINGO-LABEL%3ESharePoint%20Online%3C%2FLINGO-LABEL%3E%3C%2FLINGO-LABS%3E
New Contributor

When I try to add a new News Article on a communication site, the upcoming page is blocked. You cannot even click cancel or the upper right cross to close the form. Nothing happens.

newsnotworking.png

The console shows a lot of errors:

 

newsnotworking3.png

 

You can also not choose one of the three templates.

 

What is also remarkable is that the start page of this fresh communication site (not published) is reporting errors in the console:

 

newsnotworking2.png

We are completely stuck here. Please have a look into it.

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