about the menu for "files" and "categories" in Phoca Download

[paulyang]

Hi,
I have installed Phoca Download(3.2.0) in my joomla 3.5.0,but click the "files" and "categories" from the left menu,the page appear white,it looks have no any format(example,the head menus of administrator is disappeared,All the text is crowded on the left...etc).but other menus display is normal ,like Control Panel,Licenses..etc. what happened with it ?

[Benno]

Hi,
update your Joomla! Current version ist 3.9.21

Kind regards,
Benno