Google, in my opinion, recommends many things that make little or no difference
Your site is https://www.diabeteskatten.nl/phpbb3/index.php ?
Wow, thanks for mentioning and what an obscure way this is handled by phpbb. "Fetch as Google" was working all the time, also for forums for which the bots don't have access (which is all of them).Ger wrote: ↑Tue Jul 17, 2018 2:05 pmYour site is https://www.diabeteskatten.nl/phpbb3/index.php ?
If so, your problem is not the sitemap. Google simply has no access to your forums. Try spoofing your user agent with the Google bot (most browsers have a plugin for that), it says that your board has no forums.
Check the forum permissions of the Bots group.