Herzlich willkommen

Fatal error: Uncaught exception Exception with message Query error: Duplicate entry '7fae9dbdae917059262664c37c712448-11' for key 'checksum_pid' (UPDATE tl_search SET tstamp=1555590622, url='https://evang-kirchenchor-frauenfeld.ch/home.html', title='Home', protected='', filesize='6.08', groups=0, pid='11', language='de', text='Home Evangelischer Kirchenchor Frauenfeld Herzlich willkommen Impressum | © 2012-2017 Evangelischer Kirchenchor Frauenfeld', checksum='7fae9dbdae917059262664c37c712448' WHERE id='37') 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/core/library/Contao/Search.php(210): Contao\Database\Statement->execute('37')
#2 system/modules/core/classes/FrontendTemplate.php(330): Contao\Search::indexPage(Array)
#3 system/modules/core/classes/FrontendTemplate.php(124): Contao\FrontendTemplate->addToSearchIndex()
#4 system/modules/core/pages/PageRegular.php(190): Contao\FrontendTemplate->output(true)
#5 system/modules/core/controllers/FrontendIndex.php(285): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#6 index.php(20): Contao\FrontendIndex->run()
#7 {main}