Q:

Typo3 - dd_googlesitemap multiple sitemap

I am using following two extension:
dd_googlesitemap and dd_googlesitemap_dmf
I have two Sitemaps:
Default pages:
index.php?Eid=dd_googlesitemap

My extension:
index.php?Eid=dd_googlesitemap&Sitemap=DMF&selector=myExtSelector

I need only one sitemap. ( for google webmaster tool)
https://webmasters.googleblog.com/2006/10/multiple-Sitemaps-in-same-directory.HTML that doesn't work. 
Error:
XML-Verarbeitungsfehler: nicht wohlgeformt
Adresse: http://www.mydomain.de/sitemap.xml
Zeile Nr.  9, Spalte 55:<loc>http://www.mydomain.de/?eID=dd_googlesitemap&sitemap=dmf&selector=myExtSelector</loc>

Thank you :-)

A:

Look at line 9, character 55 and you'll probably end up near the '&' in the URL.  In XML an ampersand is used to start an entity (and a semicolon ends it).  In this case the characters following the '&' should be a valid entity name.  This is of course not the case here, so you must encode the ampersand. 
<loc>http://www.mydomain.de/?eID=dd_googlesitemap&amp;sitemap=dmf&amp;selector=myExtSelector</loc>

