One of my sites is not loading.
Showing this following errors:

Warning: Unknown: failed to open stream: Too many open files in system in Unknown on line 0

Fatal error: Unknown: Failed opening required '/home/powerwhe/public_html/IPHIDEOUT.INFO/index.php' (include_path='.:/usr/lib/php:/usr/local/lib/php') in Unknown on line 0

It was working well a couple of days ago.

Also, this same error is occuring for another site, although less frequently (sometimes showing the error sometimes not).

Both of my sites have lost a lot of traffic in the past two days

Can anybody help? I am hosting with TMZ.