A customer of mine uses the moblog, see down-syndrom.org/de/blog. He had sent a PDF with it. Since then, when you click the "Check Now" button in the moblog interface, the PDF is thrown wildly into directories, see:

In addition, the following error message appears in the backend and on the publishing page. This message also appears when I post new posts:

Even if the problems described above do not exist because of a PDF, I always get the following error message when I retrieve posts via the moblog interface.

PHP 7.4
EE 7.2
A customer of mine uses the moblog, see down-syndrom.org/de/blog. He had sent a PDF with it. Since then, when you click the "Check Now" button in the moblog interface, the PDF is thrown wildly into directories, see:
In addition, the following error message appears in the backend and on the publishing page. This message also appears when I post new posts:
Even if the problems described above do not exist because of a PDF, I always get the following error message when I retrieve posts via the moblog interface.
PHP 7.4
EE 7.2