Unknown curve loop in GEO surface 1

[j2l]

Hello,
First of all, thank you for this plugin.
I can't use the tutorial to fix my problem:
Starting with a layer of random points with Z data, here's first lines of its geojson:

{
"type": "FeatureCollection",
"name": "randompoint_Zadded",
"crs": { "type": "name", "properties": { "name": "urn:ogc:def:crs:OGC:1.3:CRS84" } },
"features": [
{ "type": "Feature", "properties": { "rand_point_id": 0, "id": 4261, "height": -50, "biome": 0, "type": "lake", "state": 0, "culture": 0 }, "geometry": { "type": "Point", "coordinates": [ -90.054842781105137, -4.86885276816724, -50.0 ] } },
...

I'd need gmsh to mesh it but it's not working, first .geo file doesn't have any elevation:
Point(IP+0) = {-90.05484278110514, -4.86885276816724, 0};
and when I still try to gmsh it, I get error:

Running '/usr/bin/gmsh -2 /media/pm/Data/user/map/mesh_GMSHplugin.geo -algo front2d -format msh2 -epslc1d 1e-3' [Gmsh 4.4.1, 1 node, max. 1 thread] 
Started on Thu May 27 11:07:34 2021 
Reading '/media/pm/Data/user/map/mesh_GMSHplugin.geo'... 
Unknown curve loop 1 in GEO surface 1 
Done reading '/media/pm/Data/user/map/mesh_GMSHplugin.geo' 
Meshing 1D... 
Done meshing 1D (6.694e-06 s) 
Meshing 2D... 
Meshing surface 1 (Plane, Frontal) 
Surface 1 consists of no elements 
Done meshing 2D (5.0888 s) 
4650 vertices 4650 elements 
------------------------------ 
Mesh generation error summary 
1 warning 
0 errors 
Check the full log for details 
------------------------------ 
Writing '/media/pm/Data/user/map/mesh_GMSHplugin.msh'... 
Done writing '/media/pm/Data/user/map/mesh_GMSHplugin.msh' 
Stopped on Thu May 27 11:07:39 2021 
An error occured.

And the produced mesh is 13 lines long:

$MeshFormat
2.2 0 8
$EndMeshFormat
$PhysicalNames
1
2 1 "Domain"
$EndPhysicalNames
$Nodes
0
$EndNodes
$Elements
0
$EndElements

How could I get this plugin to mesh from 3D points?

Thank you for your help!