Our site was working just fine yesterday. And when we go to it today it is blank on the homepage and CP.
I turned debugging on in index.php and admin.php and it returned:
Warning: require(/var/www/vhosts/domain.com.au/httpdocs/system-46cjg2378sW/codeigniter/system/core/Exceptions.php): failed to open stream:
Too many open files in /var/www/vhosts/domain.com.au/httpdocs/system-46cjg2378sW/codeigniter/system/core/Common.php on line 137 Fatal error: require():
Failed opening required '/var/www/vhosts/domain.com.au/httpdocs/system-46cjg2378sW/codeigniter/system/core/Exceptions.php' (include_path='.:') in /var/www/vhosts/domain.com.au/httpdocs/system-46cjg2378sW/codeigniter/system/core/Common.php on line 137
What on earth could have happened overnight? We haven't made any updates.