Geometry Error, Step 4

[rabbit_dawn]

I'm running QGIS 2.18.16+24xenial on Ubuntu 16, with 8 core Xeon and 8 GB RAM

I'm unable to get any building polygons from OSM Overpass so I've converted Microsoft's building data from polygons to centroid points for the building data for Step 1. I'm also using the Step 1 OSM data for the road network data. Running Step 2 with that data provides the clustered demand and route lines. Step 3 creates the high level diagrams properly.

My issue arises from Step 4. Once the process reaches "creating pricing lines" It stalls and I start getting the following error:

Layer pricing line: SQLite error: pricing line.geom violates Geometry constraint [geom-type or SRID not allowed] SQL:INSERT INTO

The number of errors increases as time goes by and the software never seems to complete Step 4.

Is there additional script I need to convert some piece of my data into a different geometry?

Thanks