Hey @Jairo_Morales welcome to the Nextcloud community 
You posted a topic in the support category. Unfortunately you ignored the template and a lot of information to help you is missing. Please edit your original post and add all required details like Nextcloud version, webserver type and version, os version, related log file content. Use the support template.
Without additional information the community members cannot help you.
- without knowing what resources your client has, its all a guessing game
- same goes for the server