Server error 500 in Regular Labs Library

Hi there,

on my 5.01 site, I get an error:when trying to edit some menu entries.
I can add a new entry, save it, it will work fine from the frontend.
When trying to edit the same entry again - boom.

I can trace down the error to the RL-library: when I deactivate it, menu editing is fine, reactivated again, not.

This is what the log-file looks like:

2023-12-04T16:18:54+00:00 CRITICAL 91.5.151.112 error Uncaught Throwable of type TypeError thrown with message "RegularLabs\Library\Uri::getParameter(): Return value must be of type string, array returned". Stack trace: #0 [ROOT]/administrator/modules/mod_betterfrontendlink/src/Helper.php(96): RegularLabs\Library\Uri::getParameter()
#1 [ROOT]/administrator/modules/mod_betterfrontendlink/src/Button.php(52): RegularLabs\Module\BetterFrontendLink\Administrator\Helper::setItemId()
#2 [ROOT]/administrator/modules/mod_betterfrontendlink/mod_betterfrontendlink.php(44): RegularLabs\Module\BetterFrontendLink\Administrator\Button::render()
#3 [ROOT]/libraries/src/Dispatcher/ModuleDispatcher.php(52): include('...')
#4 [ROOT]/libraries/src/Dispatcher/ModuleDispatcher.php(55): Joomla\CMS\Dispatcher\ModuleDispatcher::Joomla\CMS\Dispatcher\{closure}()
#5 [ROOT]/libraries/src/Helper/ModuleHelper.php(291): Joomla\CMS\Dispatcher\ModuleDispatcher->dispatch()
#6 [ROOT]/libraries/src/Helper/ModuleHelper.php(162): Joomla\CMS\Helper\ModuleHelper::renderRawModule()
#7 [ROOT]/libraries/src/Document/Renderer/Html/ModuleRenderer.php(99): Joomla\CMS\Helper\ModuleHelper::renderModule()
#8 [ROOT]/administrator/templates/atum/html/layouts/status.php(27): Joomla\CMS\Document\Renderer\Html\ModuleRenderer->render()
#9 [ROOT]/libraries/src/Layout/FileLayout.php(128): include('...')
#10 [ROOT]/libraries/src/Layout/LayoutHelper.php(76): Joomla\CMS\Layout\FileLayout->render()
#11 [ROOT]/administrator/templates/atum/index.php(99): Joomla\CMS\Layout\LayoutHelper::render()
#12 [ROOT]/libraries/src/Document/HtmlDocument.php(731): require('...')
#13 [ROOT]/libraries/src/Document/HtmlDocument.php(785): Joomla\CMS\Document\HtmlDocument->_loadTemplate()
#14 [ROOT]/libraries/src/Document/HtmlDocument.php(622): Joomla\CMS\Document\HtmlDocument->_fetchTemplate()
#15 [ROOT]/libraries/src/Application/CMSApplication.php(1057): Joomla\CMS\Document\HtmlDocument->parse()
#16 [ROOT]/libraries/src/Application/AdministratorApplication.php(434): Joomla\CMS\Application\CMSApplication->render()
#17 [ROOT]/libraries/src/Application/CMSApplication.php(311): Joomla\CMS\Application\AdministratorApplication->render()
#18 [ROOT]/administrator/includes/app.php(58): Joomla\CMS\Application\CMSApplication->execute()
#19 [ROOT]/administrator/index.php(32): require_once('...')
#20 {main}

I hope, that helps.
Thank you for your great products and generous free versions!! 🙏

Stefan

Edit:
I just deactivated only the 'better frontend-link' plugin in the backend - error gone.

Does the job!

Thank you so much, your work and effort is really appreciated!