Lizmap endlessly loads

[franyam2006]

Hello, I am using
the lizmap 3.4 plugin,
Lizmap Web Client 3.3.11,
QGIS 3.16
and QGIS Server 3.16.

At the end of the configuration, my demos 'Monpellier Transport' and others work and are displayed very well.
On first display, my layers are displayed. The next day, I start my PC and when I restart there my layers load to infinity.
I wonder where the problem is, since the demos are displayed.

thank you all