Archives of type application/octetstream are not supported

[tom42]

Hey,

maybe my older note in the following topic helps here as well?

Error when installing apps on 10.0.4.4 [Resolved]

I did the following search https://github.com/owncloud/core/search?q=%22Archives+of+type+application%22&type=Issues&utf8=%E2%9C%93 and found a few issues describing that there might be some PHP modules missing. Maybe you could review the requirements for ownCloud at the following link, could be possible that your shared server is not fulfilling those: https://doc.owncloud.org/server/latest/admin_manual/installation/source_installation.html#prerequisites