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Moderator note:

@conceptemballage , if you need support then per the forum guidelines please start your own topic.

A lot more people will see your post, and that way you stand a good chance of getting the assistance you want. Despite any similarity in symptoms, your issue is likely to be completely different because of possible differences in physical servers, accounts, hosts, plugins, theme, configurations, etc. Thus one problem, on one setup is not indicative of the functionality and reliability of an application as a whole.

https://wordpress.org/support/forum-user-guide/faq/#i-have-the-same-problem-can-i-just-reply-to-someone-elses-post-with-me-too

https://wordpress.org/support/guidelines/#post-in-the-best-place

You can do so here:

https://wordpress.org/support/plugin/contact-form-7/#new-post

I’ll be archiving your post and mine to not spam the original poster and detract from their question.

Thanks.