OpenStreetMap Directions Routing Error

Hi,

I have recently swapped the maps API to OpenStreetMap. When trying to use the directions map on a single listing page, the following error is shown in the results box:

Routing error
Calculating the route caused an error. Technical description follows:
HTTP request failed: [object XMLHttpRequest]

In the dev tools, the AJAX response from https://router.project-osrm.org/route/v1/driving/… is:

{“message”:”Too Many Requests”}

The website is still in testing and there are currently only a handful of listings, so I am unsure as to why I am seeing this message.

The error seems to appear almost every time although I have occasionally been able to view the direction results.