[Bug]: style of layers invisible in lizmap map

What is the bug? (in English)

In lizmap canevas, i see attributes and i can zoom on entities (postgres or shapfile layers) but the geom is invisible. The legend is also not available. Baselayers (IGN) are visible. i use french app, I tried change value of style layer "défaut" to "default" but it change nothing. Note : when i call WMS directly in Qgis desktop, legend and style are visible.

Steps to reproduce the issue

Go to my lizmap adress click on view map i see the list of layers (not legend) geom are not visible (but attributes and zoom are available)

Versions, safeguards, check summary etc

Versions :

Lizmap Web Client : 3.8.1
Lizmap plugin : 4.4.1
QGIS Desktop : 3.34.11
QGIS Server : 3.34.4
Py-QGIS-Server : not used
QGIS Server plugin atlasprint : not found
QGIS Server plugin lizmap_server : 2.10.1
QGIS Server plugin wfsOutputExtension : not found

List of safeguards :

* Mode : normal * Allow parent folder : no * Prevent other drive : yes * Prevent PG service : yes * Prevent PG Auth DB : yes * Force PG user&pass : yes * Prevent ECW : yes

Check Lizmap plugin

[X] I have done the step just before in the Lizmap QGIS desktop plugin before opening this ticket. Otherwise, my ticket is not considered valid and might get closed.

Operating system

Ubuntu 24.04 LTS

Browsers

Firefox, Microsoft Edge

Browsers version

Frirefox 131 , Edge Version 129.0.2792.65

Relevant log output

No log is admin lizmap

Qgis server
<ServiceExceptionReport xmlns=["http://www.opengis.net/ogc"](http://www.opengis.net/ogc) version="1.3.0">
<ServiceException code="Service configuration error">Service unknown or unsupported. Current supported services
(case-sensitive): WMS WFS WCS WMTS SampleService, or use a WFS3 (OGC API Features) endpoint</ServiceException>
</ServiceExceptionReport>

browser console

DOMException: Invalid encoded image data. Image.js:194:20
    load Image.js:194

3liz / lizmap-web-client