The mailing list for listmasters using Sympa

[Quentin Drouet <address@concealed>]

I tried to upgrade from 6.1.17 to 6.1.19 this morning and I am unable to manage list configuration...

I allways have a template error : 

Sympa could not deliver the requested page for the following reason:

undef error - optdesc: filter not found

This appear on lots of pages 

Is there a quick solution to fix it?

Thanks in advance

Quentin