Hello, I still haven't solved it.
I contacted hosting support and they told me the following:

Please note that for security reasons, the following features are disabled by default in the cPanel control panel for all shared hosting accounts:
'disable_functions = show_source, system, shell_exec, passthru, exec, popen, proc_open'

So in this case what could I do. I still have the same problem that when they create the account the page remains blank.
I require your great help team. and thank you for what you have told me.
If anyone knows what I can do to fix this problem. I appreciate