Fatal error: Uncaught exception Exception with message The watchlist requires items with an unique file uuid. thrown in composer/vendor/heimrichhannot/contao-watchlist/classes/core/Watchlist.php on line 342
#0 composer/vendor/heimrichhannot/contao-watchlist/modules/ModuleWatchlist.php(68): HeimrichHannot\Watchlist\Watchlist->addItem(Object(HeimrichHannot\Watchlist\WatchlistItemModel))
#1 composer/vendor/heimrichhannot/contao-watchlist/modules/ModuleWatchlist.php(36): HeimrichHannot\Watchlist\ModuleWatchlist->runAction()
#2 system/modules/core/library/Contao/Controller.php(321): HeimrichHannot\Watchlist\ModuleWatchlist->generate()
#3 system/modules/core/pages/PageRegular.php(137): Contao\Controller::getFrontendModule(Object(Contao\ModuleModel), 'Fixed')
#4 system/modules/core/controllers/FrontendIndex.php(285): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#5 index.php(22): Contao\FrontendIndex->run()
#6 {main}