Unauthorized access ZSQLMethods to anonymous

I am building a site with Zope4. I installed ZsqlMethods to search for data in a database. My problem is that my site only works if I am authenticated!
Here is the error message:

AccessControl.unauthorized.Unauthorized: You are not allowed to access 'SQLS_allPosts.sql' in this context

  • Expression: "python:context'allPosts.py'"
  • Filename: /fam/Posts/posts-light.html
  • Location: (line 1: col 35)
  • Expression: "context/Posts/posts-light.html"
  • Filename: /fam/index.html
  • Location: (line 48: col 50)
  • Arguments: template: <ImplicitAcquisitionWrapper posts-light.html at 0x7f25ec3eb870>
    here: <ImplicitAcquisitionWrapper Posts at 0x7f25ec6bf5a0>
    context: <ImplicitAcquisitionWrapper Posts at 0x7f25ec6bf5a0>
    container: <ImplicitAcquisitionWrapper Posts at 0x7f25ec6bf5a0>
    nothing: <NoneType - at 0xa286b0>
    options: {...} (1)
    root: <ImplicitAcquisitionWrapper at 0x7f25ec39af50>
    request: <WSGIRequest - at 0x7f25ec448750>
    modules: <_SecureModuleImporter - at 0x7f25f11f93d0>
    traverse_subpath: <list - at 0x7f25ec40fd20>
    user: <ImplicitAcquisitionWrapper - at 0x7f25ec3a2f00>
    default: <object - at 0x7f25f6415e20>
    repeat: {...} (0)
    loop: {...} (0)
    wrapped_repeat: <SafeMapping - at 0x7f25ec52ef00>
    target_language: <NoneType - at 0xa286b0>
    translate: <function translate at 0x7f25ec4e6320>

How to fix this problem?
Thanks for your help

Sorry, i found !
I changed security from my ZSQLMethod

I'm not used to it, because in Zope2 it was not necessary to do it.