by Guillermo Madero S..
Hi Farah,
You need to edit the PHP configuration file, php.ini. Try increasing the value of the following parameters to 5 minutes:
max_execution_time = 300
max_input_time = 300
You need to restart your web server after you save the file.
If this works, then try to find and use the lowest possible value that still allows your installation to run without timeouts.