Warning: mysql_query(): Unable to save result set in system/modules/core/library/Contao/Database/Mysql/Statement.php on line 74
#0 [internal function]: __error(2, 'mysql_query(): ...', '/usr/www/users/...', 74, Array)
#1 system/modules/core/library/Contao/Database/Mysql/Statement.php(74): mysql_query('SELECT id,alias...', Resource id #51)
#2 system/modules/core/library/Contao/Database/Statement.php(293): Contao\Database\Mysql\Statement->execute_query()
#3 system/modules/core/library/Contao/Database/Statement.php(264): Contao\Database\Statement->query()
#4 system/modules/efg/modules/ModuleFormdataListing.php(1151): Contao\Database\Statement->execute('')
#5 system/modules/core/modules/Module.php(287): Efg\ModuleFormdataListing->compile()
#6 system/modules/efg/modules/ModuleFormdataListing.php(476): Contao\Module->generate()
#7 system/modules/core/elements/ContentModule.php(59): Efg\ModuleFormdataListing->generate()
#8 system/modules/core/library/Contao/Controller.php(484): Contao\ContentModule->generate()
#9 system/modules/core/modules/ModuleArticle.php(213): Contao\Controller::getContentElement(Object(Contao\ContentModel), 'main')
#10 system/modules/tags/modules/ModuleArticle.php(26): Contao\ModuleArticle->compile()
#11 system/modules/core/modules/Module.php(287): Aurealis\ModuleArticle->compile()
#12 system/modules/core/modules/ModuleArticle.php(67): Contao\Module->generate()
#13 system/modules/core/library/Contao/Controller.php(417): Contao\ModuleArticle->generate(false)
#14 system/modules/core/library/Contao/Controller.php(277): Contao\Controller::getArticle(Object(Contao\ArticleModel), false, false, 'main')
#15 system/modules/core/pages/PageRegular.php(133): Contao\Controller::getFrontendModule('0', 'main')
#16 system/modules/core/controllers/FrontendIndex.php(285): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#17 index.php(20): Contao\FrontendIndex->run()
#18 {main}

Fatal error: Uncaught exception Exception with message Query error: Subquery returns more than 1 row (SELECT id,alias,(SELECT value FROM tl_formdata_details WHERE ff_name="Nachname" AND pid=f.id) AS `Nachname`,(SELECT value FROM tl_formdata_details WHERE ff_name="Rennen" AND pid=f.id) AS `Rennen`,(SELECT value FROM tl_formdata_details WHERE ff_name="Rad" AND pid=f.id) AS `Rad`,(SELECT value FROM tl_formdata_details WHERE ff_name="Fahrzeugtyp" AND pid=f.id) AS `Fahrzeugtyp`,fd_user,fd_member FROM tl_formdata f WHERE form='Rennanmeldung BeND 2018 - gesamt' ORDER BY Rennen) thrown in system/modules/core/library/Contao/Database/Statement.php on line 295
#0 system/modules/core/library/Contao/Database/Statement.php(264): Contao\Database\Statement->query()
#1 system/modules/efg/modules/ModuleFormdataListing.php(1151): Contao\Database\Statement->execute('')
#2 system/modules/core/modules/Module.php(287): Efg\ModuleFormdataListing->compile()
#3 system/modules/efg/modules/ModuleFormdataListing.php(476): Contao\Module->generate()
#4 system/modules/core/elements/ContentModule.php(59): Efg\ModuleFormdataListing->generate()
#5 system/modules/core/library/Contao/Controller.php(484): Contao\ContentModule->generate()
#6 system/modules/core/modules/ModuleArticle.php(213): Contao\Controller::getContentElement(Object(Contao\ContentModel), 'main')
#7 system/modules/tags/modules/ModuleArticle.php(26): Contao\ModuleArticle->compile()
#8 system/modules/core/modules/Module.php(287): Aurealis\ModuleArticle->compile()
#9 system/modules/core/modules/ModuleArticle.php(67): Contao\Module->generate()
#10 system/modules/core/library/Contao/Controller.php(417): Contao\ModuleArticle->generate(false)
#11 system/modules/core/library/Contao/Controller.php(277): Contao\Controller::getArticle(Object(Contao\ArticleModel), false, false, 'main')
#12 system/modules/core/pages/PageRegular.php(133): Contao\Controller::getFrontendModule('0', 'main')
#13 system/modules/core/controllers/FrontendIndex.php(285): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#14 index.php(20): Contao\FrontendIndex->run()
#15 {main}