Error when updating the media

Hello!

For some reasons the plugin doesn’t work for some files and I get the following error:

ID: 1115
Title: Urkunden LM 2019
Permalink: https://www.bdmp-bb.de/urkunden-lm-2019-4/
URL: https://www.bdmp-bb.de/wp-content/uploads/LM/2019/Urkunden-LM-2019.zip
File name: Urkunden-LM-2019.zip
Date/Time: 2019-11-10 12:18
File type: zip(application/zip)
File size: Could not retrieve.

Could you please tell me what is the problem?

Thanks and regards
Sebastian