Unable to view graphs on webui

[Shelldog95]

I have installed latest tsung on debian from a debian mirror: 1.7.0-3.1
When starting it, there are no graphs shown after clicking on graphs. The requests are answered by HTTP 403 status codes.

inet_errors.log shows:

[20/Mar/2022:17:10:31 +0100] access to /es/images/graphes-Users-simultaneous_tn.png failed for 127.0.0.1, reason:
"mod_esi: Client not authorized to evaluate: images/graphes-Users-simultaneous_tn.png"

[igorfil]

I have the same issue. The webpage requests images at http://localhost:8091/es/images/*,, but they are available at http://localhost:8091/images/* (no /es)