[TYPO3-english] Error messages - huge amount

[Peder Høy Kristensen]

Hi,

I am very pleased to use TYPO3 ver. 7.6.9, but I get a huge amount of error messages. They all are like this

Core: Exception handler (WEB): Uncaught TYPO3 Exception: #1301648780: The requested page does not exist! | TYPO3\CMS\Core\Error\Http\PageNotFoundException thrown in file /var/www/vhosts/domain.dk/httpdocs/typo3/sysext/frontend/Classes/Controller/TypoScriptFrontendController.php in line 1587. Requested URL: http://www.domain.dk/index.php?id=199 Changes in field: l10n_diffsource.

What could I do to avoid all the messages?

BR Peder