Hi @nicopoal,
Glad you were able to find the issue. For the legacy ones, could you check the RewriteBase on your public/legacy folder, please? since your url is something like http://xxx-myurl-xxx/public/legacy/, RewriteBase should have the following value /public/legacy
By the way, if possible, for security purposes it is best to point your vhost directly to public folder. So that you can access your crm directly on http://xxx-myurl-xxx/. Note if you do this change the RewriteBase needs to be changed to /legacy