Problem uploading image and access via API

Hi, I have two problems. The first is, that if I try to attach a photo to an activity post, it looks like it is uploading, but it never appears in the post and also not in the backend. In console I can see the message: POST 404 (Not Found)

Second problem: We get an error in our App, which should be used to post activity with image. But we can’t submit the login details. The error is: Uncaught SyntaxError: Unexpected token o in JSON at position 1 file:///android_asset/www/index.html 1 Can anyone help me? The errors could be present for a longer time as not many people use our Community and App during summer. Maybe already since update 3.10.7

Hello @dabiathlet,

Regarding the activity post:

Please once try to troubleshoot this issue by activating any default theme of WordPress and deactivating other plugins.

Additionally, try to resave the permalink for 404 issue. You can visit the document here -