I get this error when trying to install the update:
Sorry you don't have the rights!
1S111/1
The URL of page the error occurred on was https:/.../?adsess=oood9en1tcech355pedaln4ns9&app=core&module=applications&controller=plugins&do=doInstall&file=/tmp/IPSHZlhjC&key=c5033c47f2bbf01552e9737d86c2c029&id=1&mr=4
OverflowException::0
#0 /../applications/core/modules/admin/applications/plugins.php(544): IPS\_Theme::addTemplate(Array, true)
#1 /../system/Helpers/MultipleRedirect/MultipleRedirect.php(92): IPS\core\modules\admin\applications\_plugins->IPS\core\modules\admin\applications\{closure}(Array)
#2 /../applications/core/modules/admin/applications/plugins.php(946): IPS\Helpers\_MultipleRedirect->__construct(Object(IPS\Http\Url\Internal), Object(Closure), Object(Closure))
#3 /../system/Dispatcher/Controller.php(85): IPS\core\modules\admin\applications\_plugins->doInstall()
#4 /../system/Node/Controller.php(62): IPS\Dispatcher\_Controller->execute()
#5 /../applications/core/modules/admin/applications/plugins.php(43): IPS\Node\_Controller->execute()
#6 /../system/Dispatcher/Dispatcher.php(152): IPS\core\modules\admin\applications\_plugins->execute()
#7 /../admin/index.php(14): IPS\_Dispatcher->run()
#8 {main}