Hello.
I made the sugested commands/updates and now have:
pi@emonpi:~ $ sudo git -C /var/www/emoncms describe --tags --debug
searching to describe HEAD
annotated 4 9.9.8
annotated 9 9.9.7
lightweight 41 9.9.6
lightweight 229 9.9.5
lightweight 243 9.9.3
annotated 246 9.9.4
lightweight 297 V9.9.2
lightweight 300 v9.9.1
lightweight 305 v9.9.0
lightweight 756 9.8.31
traversed 839 commits
more than 10 tags found; listed 10 most recent
gave up search at 50c7901bca2ffd2226798bbca8a6bcc78c48f94b
9.9.8-4-gd0db7a57
pi@emonpi:~ $ sudo git -C /var/www/emoncms describe
9.9.8-4-gd0db7a57
But the problem of virtual feeds don’t fixe 
Problems creating virtual feed after update
Unable to Create a Virtual Feed