apicurito can't generate camel project

Issue

I imported a sample json file into API Designer, when I click generate Fuse camel project, it presents error: failed to generated project, in the pod apicurito-ui-1-8xg49, logs are as below:

2020-01-07T03:30:28Z code=405, message=Method Not Allowed
2020-01-07T03:30:28Z 405 <- POST /api/v1/generate/camel-project.zip
2020-01-07T03:30:30Z 200 <- GET /
2020-01-07T03:30:30Z code=405, message=Method Not Allowed
2020-01-07T03:30:30Z 405 <- POST /api/v1/generate/camel-project.zip