.htaccess: </FilesMatch> without matching <FilesMatch> section

Apache is reporting a small issue in its error_log:

/var/www/html/myphotoshare_demo/.htaccess: </FilesMatch> without matching <FilesMatch> section

I assume that's because of the two tags appearing on the same line in the .htaccess file

There's also a a lot of white spaces at the end of the line Header set Cache-Control "max-age=2592000, public" for the Matomo section.