Add marker not working

I buyed the pro version and I have an error 500 when I want add a marker.

Uncaught Error: Internal Server Error
at Object.params.error.params.error

Request URL: https://architecture-lanctuit.fr/preprod/index.php?rest_route=/wpgmza/v1/markers/
Request Method: POST
Status Code: 500 Internal Server Error
Remote Address: 89.251.56.92:80
Referrer Policy: strict-origin-when-cross-origin

Can you help me please ?

Thanks