Inline moderation not working - 1.8.14

[Moseby]

Hello! 

So I can't remove any threads because the inline moderation tells me I haven't choosed any threads. 
I have tried what the sticky thread says, but it doesn't seem to work anyways. 

Could anyone help me get through it to work? What do you need? 

Domain is: https://125.nu/forum

All help is much appreciated.

EDIT: The inline moderation is working with the default theme. But it's not working with the theme I want to use (Sleeq)

[.m.]

in the settings.php file change value of $settings['cookiesecureflag'] to 1

$settings['cookiesecureflag'] = "1";

in the headerinclude template of the theme add below after var cookiePath = "{$mybb->settings['cookiepath']}";

var cookiePrefix = "{$mybb->settings['cookieprefix']}";

in Configuration Section of forum admin panel
select yes for Secure Cookie Flag at Site Details page

after doing above changes,
hard refresh your browser [eg. press CTRL + F5] on a forum page or a topic page
and check inline moderation again

[Moseby]

in the settings.php file change value of $settings['cookiesecureflag'] to 1

$settings['cookiesecureflag'] = "1";

in the headerinclude template of the theme add below after var cookiePath = "{$mybb->settings['cookiepath']}";

var cookiePrefix = "{$mybb->settings['cookieprefix']}";

in  Configuration Section of forum admin panel
select yes for Secure Cookie Flag at Site Details page

after doing above changes,
hard refresh your browser [eg. press CTRL + F5] on a forum page or a topic page
and check inline moderation again

Working like a CHARM. 

Thanks a ton! Your help is truly appreciated. Thank you!

[User 2877]

There is other bugs in 1.8.14 that are now fixed. You should consider upgrading. There are security risks too.