new rider not being able to be added

Describe the bug
upon adding the website generated an alert saying that there was another rider with the following credentials, where as when i looked in the grid view there was no rider with the same name.

To Reproduce
Steps to reproduce the behavior:

Go to 'riders'
Click on 'add new'
fill details and save
See error
Expected behavior
the rider should have been registered.

Screenshots
image

Desktop (please complete the following information):

OS: Windows
Browser Chrome
Version 122.0.6261.95 (Official Build) (64-bit)

Start by reproducing the issue from the riders area in Chrome on Windows: choose “add new,” fill in the rider details, and save. Confirm whether a rider with unique credentials is rejected as a duplicate; done means a valid new rider is registered without the false duplicate alert.

Written by the indexing model from the issue text.