The REMOVE button is not active, I can not click on the delete button

ℹ️ Support
1

OS - CentOS 7
Nextcloud version 15.0.5
PHP 5.4.16
rh-php71-php-fpm

application:
Accessibility 1.1.0
Activity 2.8.2
Auditing / Logging 1.5.0
Calendar 1.6.4
Collaborative tags 1.5.0
Comments 1.5.0
Contacts 3.0.5
Deleted files 1.5.0
External storage support 1.6.0
File sharing 1.7.0
Files automated tagging 1.5.0
First run wizard 2.4.0
Gallery 18.2.0
Group folders 2.0.4
LDAP user and group backend 1.5.0
Log Reader 2.0.0
Mail 0.11.0
Monitoring 1.5.0
Nextcloud announcements 1.4.0
Notifications 2.3.0
ONLYOFFICE 2.1.6
PDF viewer 1.4.0
Quota warning 1.4.0
Retention 1.4.2
Share by mail 1.5.0
Talk 5.0.2
Text editor 2.7.0
Theming 1.6.0
Two-Factor Admin Support 0.2.0
Two-Factor TOTP Provider 2.1.2
Update notification 1.5.0
Versions 1.8.0
Video player 1.4.0

Screenshot_20190401_104055
The REMOVE button is not active, I can not click on the delete button.

2

I also can not enable or disable applications.
The button is simply not pressed.

3

As always, it would be good to know on which system that problem appears, which software versions you are using, to which Nextcloud server you are connecting and what the steps are to replicate the problem. Please be as precise as possible.

4

updated cap

5

You’ve now provided details about the server, but which client are you using and which web browser etc.?

6

browser:
Chromium 73
Firefox 66
and others on different OS

7 
<div class = "oc-dialog" tabindex = "- 1" role = "dialog" aria-disabled = "false" style = "display: inline-block; position: fixed; width: auto; height: auto;"> <h2 class = "oc-dialog-title"> Delete "11111" "? </ h2> <a class="oc-dialog-close"> </a> <div id =" oc-dialog-9-content "class =" oc-dialog-content "style =" height: calc (100% - 92px); ">
<p> <span class = "ui-icon ui-icon-notice"> </ span> Really delete "11111" and all attached files? This operation is irreversible. </ P>
</ div> <div class = "oc-dialog-buttonrow twobuttons"> <button> No </ button> <button class = "primary"> Yes </ button> </ div> </ div>

<div class = "oc-dialog" tabindex = "- 1" role = "dialog" aria-disabled = "false" style = "display: inline-block; position: fixed; width: auto; height: auto;"> <h2 class = "oc-dialog-title"> Confirm group deletion </ h2> <a class="oc-dialog-close"> </a> <div id = "oc-dialog-14-content" class = "oc-dialog-content" style = "height: calc (100% - 82px);">
<p> <span class = "ui-icon ui-icon-notice"> </ span> The "1111" group will be deleted, but this will NOT remove users. </ p>
</ div> <div class = "oc-dialog-buttonrow twobuttons"> <button> No </ button> <button class = "primary"> Yes </ button> </ div> </ div>

role = “dialog” does not work
the selection window does not open