REST Exception "PARAMETERS" is not supported


I’ve just upgrade dreamfactory on latest git version 2.12.0. I have Centos 7.5, nginx with php-fpm.
Now I am getting this errors multiple times:
[error] 1678#0: *277 FastCGI sent in stderr: "PHP message: REST Exception #501 > The verb "PARAMETERS" is not supported.
for request: “GET /api/v2/api_docs/radtaxidb HTTP/1.1” and referrer: “

Can you please help me, to solve that issue?
Thank you,