Warning: filemtime(): stat failed for assets/bootstrap/bootstrap/dist/css/bootstrap.min.css in composer/vendor/bit3/contao-theme-plus/src/Bit3/Contao/ThemePlus/ThemePlus.php on line 1579
#0 [internal function]: __error(2, 'filemtime(): st...', '/usr/www/users/...', 1579, Array)
#1 composer/vendor/bit3/contao-theme-plus/src/Bit3/Contao/ThemePlus/ThemePlus.php(1579): filemtime('assets/bootstra...')
#2 composer/vendor/bit3/contao-theme-plus/src/Bit3/Contao/ThemePlus/ThemePlus.php(981): Bit3\Contao\ThemePlus\ThemePlus->addAssetsToCollectionFromDatabase(Object(Contao\Model\Collection), 'css', Object(Assetic\Asset\AssetCollection), Array, Object(Assetic\Filter\FilterCollection))
#3 composer/vendor/bit3/contao-theme-plus/src/Bit3/Contao/ThemePlus/ThemePlus.php(688): Bit3\Contao\ThemePlus\ThemePlus->parseStylesheets(Object(Contao\LayoutModel), Array)
#4 system/modules/core/library/Contao/Controller.php(1829): Bit3\Contao\ThemePlus\ThemePlus->hookReplaceDynamicScriptTags('...')
#5 system/modules/core/classes/FrontendTemplate.php(91): Contao\Controller::replaceDynamicScriptTags('...')
#6 system/modules/core/pages/PageRegular.php(186): Contao\FrontendTemplate->output(true)
#7 system/modules/core/controllers/FrontendIndex.php(250): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#8 index.php(20): Contao\FrontendIndex->run()
#9 {main}

Fatal error: Uncaught exception RuntimeException with message The source file "/usr/www/users/tbyoww/portal/assets/bootstrap/bootstrap/dist/css/bootstrap.min.css" does not exist. thrown in composer/vendor/kriswallsmith/assetic/src/Assetic/Asset/FileAsset.php on line 73
#0 composer/vendor/bit3/contao-theme-plus/src/Bit3/Contao/ThemePlus/ThemePlus.php(230): Assetic\Asset\FileAsset->getLastModified()
#1 composer/vendor/bit3/contao-theme-plus/src/Bit3/Contao/ThemePlus/ThemePlus.php(1581): Bit3\Contao\ThemePlus\ThemePlus::getAssetPath(Object(Assetic\Asset\FileAsset), 'css')
#2 composer/vendor/bit3/contao-theme-plus/src/Bit3/Contao/ThemePlus/ThemePlus.php(981): Bit3\Contao\ThemePlus\ThemePlus->addAssetsToCollectionFromDatabase(Object(Contao\Model\Collection), 'css', Object(Assetic\Asset\AssetCollection), Array, Object(Assetic\Filter\FilterCollection))
#3 composer/vendor/bit3/contao-theme-plus/src/Bit3/Contao/ThemePlus/ThemePlus.php(688): Bit3\Contao\ThemePlus\ThemePlus->parseStylesheets(Object(Contao\LayoutModel), Array)
#4 system/modules/core/library/Contao/Controller.php(1829): Bit3\Contao\ThemePlus\ThemePlus->hookReplaceDynamicScriptTags('...')
#5 system/modules/core/classes/FrontendTemplate.php(91): Contao\Controller::replaceDynamicScriptTags('...')
#6 system/modules/core/pages/PageRegular.php(186): Contao\FrontendTemplate->output(true)
#7 system/modules/core/controllers/FrontendIndex.php(250): Contao\PageRegular->generate(Object(Contao\PageModel), true)
#8 index.php(20): Contao\FrontendIndex->run()
#9 {main}