Upload form bug

[pierzo]

After clicking on the send button I get:

ErrorException: preg_replace(): Unknown modifier '-' in /home2/roosterc/public_html/plugins/martin/forms/classes/BackendHelpers.php:88

Stack trace:
#0 /home2/roosterc/public_html/vendor/laravel/framework/src/Illuminate/Foundation/Bootstrap/HandleExceptions.php(259): Illuminate\Foundation\Bootstrap\HandleExceptions->handleError()
#1 [internal function]: Illuminate\Foundation\Bootstrap\HandleExceptions->Illuminate\Foundation\Bootstrap{closure}()
#2 /home2/roosterc/public_html/plugins/martin/forms/classes/BackendHelpers.php(88): preg_replace()
#3 /home2/roosterc/public_html/plugins/martin/forms/classes/mails/Notification.php(122): Martin\Forms\Classes\BackendHelpers::replaceToken()
#4 /home2/roosterc/public_html/plugins/martin/forms/classes/mails/Notification.php(57): Martin\Forms\Classes\Mails\Notification->prepareCustomSubject()
#5 /home2/roosterc/public_html/plugins/martin/forms/classes/MagicForm.php(216): Martin\Forms\Classes\Mails\Notification->send()
#6 /home2/roosterc/public_html/modules/cms/classes/ComponentBase.php(194): Martin\Forms\Classes\MagicForm->onFormSubmit()
#7 /home2/roosterc/public_html/modules/cms/classes/Controller.php(823): Cms\Classes\ComponentBase->runAjaxHandler()
#8 /home2/roosterc/public_html/modules/cms/classes/Controller.php(714): Cms\Classes\Controller->runAjaxHandler()
#9 /home2/roosterc/public_html/modules/cms/classes/Controller.php(371): Cms\Classes\Controller->execAjaxHandlers()
#10 /home2/roosterc/public_html/modules/cms/classes/Controller.php(217): Cms\Classes\Controller->runPage()
#11 /home2/roosterc/public_html/modules/cms/classes/CmsController.php(50): Cms\Classes\Controller->run()
#12 /home2/roosterc/public_html/vendor/laravel/framework/src/Illuminate/Routing/Controller.php(54): Cms\Classes\CmsController->run()
#13 /home2/roosterc/public_html/vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php(43): Illuminate\Routing\Controller->callAction()
#14 /home2/roosterc/public_html/vendor/laravel/framework/src/Illuminate/Routing/Route.php(260): Illuminate\Routing\ControllerDispatcher->dispatch()
#15 /home2/roosterc/public_html/vendor/laravel/framework/src/Illuminate/Routing/Route.php(205): Illuminate\Routing\Route->runController()
#16 /home2/roosterc/public_html/vendor/laravel/framework/src/Illuminate/Routing/Router.php(727): Illuminate\Routing\Route->run()
#17 /home2/roosterc/public_html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(141): Illuminate\Routing\Router->Illuminate\Routing{closure}()
#18 /home2/roosterc/public_html/vendor/laravel/framework/src/Illuminate/Routing/Middleware/SubstituteBindings.php(50): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline{closure}()
#19 /home2/roosterc/public_html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\Routing\Middleware\SubstituteBindings->handle()
#20 /home2/roosterc/public_html/vendor/laravel/framework/src/Illuminate/View/Middleware/ShareErrorsFromSession.php(49): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline{closure}()
#21 /home2/roosterc/public_html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\View\Middleware\ShareErrorsFromSession->handle()
#22 /home2/roosterc/public_html/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(121): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline{closure}()
#23 /home2/roosterc/public_html/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(64): Illuminate\Session\Middleware\StartSession->handleStatefulRequest()
#24 /home2/roosterc/public_html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\Session\Middleware\StartSession->handle()
#25 /home2/roosterc/public_html/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/AddQueuedCookiesToResponse.php(37): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline{closure}()
#26 /home2/roosterc/public_html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse->handle()
#27 /home2/roosterc/public_html/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/EncryptCookies.php(67): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline{closure}()
#28 /home2/roosterc/public_html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Illuminate\Cookie\Middleware\EncryptCookies->handle()
#29 /home2/roosterc/public_html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(116): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline{closure}()
#30 /home2/roosterc/public_html/vendor/laravel/framework/src/Illuminate/Routing/Router.php(728): Illuminate\Pipeline\Pipeline->then()
#31 /home2/roosterc/public_html/vendor/laravel/framework/src/Illuminate/Routing/Router.php(705): Illuminate\Routing\Router->runRouteWithinStack()
#32 /home2/roosterc/public_html/vendor/laravel/framework/src/Illuminate/Routing/Router.php(669): Illuminate\Routing\Router->runRoute()
#33 /home2/roosterc/public_html/vendor/winter/storm/src/Router/CoreRouter.php(20): Illuminate\Routing\Router->dispatchToRoute()
#34 /home2/roosterc/public_html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(190): Winter\Storm\Router\CoreRouter->dispatch()
#35 /home2/roosterc/public_html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(141): Illuminate\Foundation\Http\Kernel->Illuminate\Foundation\Http{closure}()
#36 /home2/roosterc/public_html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/PreventRequestsDuringMaintenance.php(86): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline{closure}()
#37 /home2/roosterc/public_html/vendor/winter/storm/src/Foundation/Http/Middleware/CheckForMaintenanceMode.php(25): Illuminate\Foundation\Http\Middleware\PreventRequestsDuringMaintenance->handle()
#38 /home2/roosterc/public_html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Winter\Storm\Foundation\Http\Middleware\CheckForMaintenanceMode->handle()
#39 /home2/roosterc/public_html/vendor/winter/storm/src/Foundation/Http/Middleware/CheckForTrustedProxies.php(56): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline{closure}()
#40 /home2/roosterc/public_html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Winter\Storm\Foundation\Http\Middleware\CheckForTrustedProxies->handle()
#41 /home2/roosterc/public_html/vendor/winter/storm/src/Http/Middleware/TrustHosts.php(46): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline{closure}()
#42 /home2/roosterc/public_html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(180): Winter\Storm\Http\Middleware\TrustHosts->handle()
#43 /home2/roosterc/public_html/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(116): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline{closure}()
#44 /home2/roosterc/public_html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(165): Illuminate\Pipeline\Pipeline->then()
#45 /home2/roosterc/public_html/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(134): Illuminate\Foundation\Http\Kernel->sendRequestThroughRouter()
#46 /home2/roosterc/public_html/index.php(43): Illuminate\Foundation\Http\Kernel->handle()
#47 {main}