Can I add a category of file in a custom module?

Yes! Dropfiles is built to be used in every WYSIWYG editor field, you just need to have content plugin to be called. Most of the time it's activated by default. It's not the case in the Joomla HTML custom module, you need to activate it. In the option tab you need to set the option Prepare content to Yes.

Bisakah saya menambahkan kategori file dalam modul khusus?

Ya!

Dropfiles dirancang untuk digunakan di semua bidang editor WYSIWYG, Anda hanya perlu mengaktifkan plugin konten. Biasanya, plugin ini diaktifkan secara default.
Hal ini tidak berlaku untuk modul HTML kustom Joomla, Anda perlu mengaktifkannya.

Di tab opsi, Anda perlu mengatur opsi Siapkan konten ke Ya.

An Error Occurred: Whoops, looks like something went wrong.

Sorry, there was a problem we could not recover from.

The server returned a "500 - Whoops, looks like something went wrong."

Help me resolve this