Load Spatialite fails with wrong error message

[Jonasvsl]

When trying to load this schematisation:

https://management.3di.live/schematisations/168/9245

using the 'Load Spatialite' button I get this message:

However I can open the spatialite in QGIS 3.22. Why does it refer to QGIS 3.16 and do users understand what is meant with threedi-schema?

Also:

I get the following messages when running the schematisation checker:

level,error_code,id,table,column,value,description
WARNING,"94","36",v2_cross_section_definition,height,"0.5","v2_cross_section_definition.height should be null or empty for shapes {8, 2, 3}"
WARNING,"94","37",v2_cross_section_definition,height,"1.05","v2_cross_section_definition.height should be null or empty for shapes {8, 2, 3}"
WARNING,"94","38",v2_cross_section_definition,height,"0.9","v2_cross_section_definition.height should be null or empty for shapes {8, 2, 3}"
WARNING,"94","39",v2_cross_section_definition,height,"0.45","v2_cross_section_definition.height should be null or empty for shapes {8, 2, 3}"
WARNING,"94","40",v2_cross_section_definition,height,"1.8","v2_cross_section_definition.height should be null or empty for shapes {8, 2, 3}"
WARNING,"94","41",v2_cross_section_definition,height,"0.75","v2_cross_section_definition.height should be null or empty for shapes {8, 2, 3}"
WARNING,"94","42",v2_cross_section_definition,height,"0.6","v2_cross_section_definition.height should be null or empty for shapes {8, 2, 3}"
WARNING,"94","43",v2_cross_section_definition,height,"1.2","v2_cross_section_definition.height should be null or empty for shapes {8, 2, 3}"
WARNING,"102","5017",v2_pipe,invert_level_start_point,"-3.19","v2_pipe.invert_level_start_point should be higher than or equal to v2_manhole.bottom_level. In the future, this will lead to an error."
WARNING,"103","5018",v2_pipe,invert_level_end_point,"-3.19","v2_pipe.invert_level_end_point should be higher than or equal to v2_manhole.bottom_level. In the future, this will lead to an error."
WARNING,"201","1702",v2_connection_nodes,id,"1702",The connection_node is within 0.001 degrees of another connection_node.
WARNING,"201","1700",v2_connection_nodes,id,"1700",The connection_node is within 0.001 degrees of another connection_node.
WARNING,"1106","1",v2_global_settings,minimum_sim_time_step,"1.0",v2_global_settings.minimum_sim_time_step should be at least 10 times smaller than v2_global_settings.sim_time_step

So no errors.

What do I need to do to make this spatialite work? I.e. What is the real error message?