Error in "Tweak Settings" after saving settings

Hi
I have the latest version of cpanel installed on a VPS, all done cleanly.
However, any changes I make in "Tweak Settings" generates an error when I click in button save.

[a fatal error or timeout occurred while processing this directive]

This message shows a log

Code:

flock LOCK_EX timeout at /usr/local/cpanel/Cpanel/SafeFile.pm line 56.
	Cpanel::SafeFile::__ANON__('ALRM') called at /usr/local/cpanel/Cpanel/SafeFile.pm line 58
	eval {...} called at /usr/local/cpanel/Cpanel/SafeFile.pm line 55
	Cpanel::SafeFile::safeopen('IO::Handle=GLOB(0x4fa8fb0)', '<', '/var/cpanel/cpanel.config') called at /usr/local/cpanel/Cpanel/Config/LoadConfig.pm line 142
	Cpanel::Config::LoadConfig::loadConfig('/var/cpanel/cpanel.config', 'HASH(0x545cc90)', undef, undef, undef, 1, 'HASH(0x5479c50)') called at /usr/local/cpanel/Cpanel/Config/LoadCpConf.pm line 157
	Cpanel::Config::LoadCpConf::loadcpconf() called at /usr/local/cpanel/Cpanel/Rlimit.pm line 129
	Cpanel::Rlimit::get_server_setting_or_default() called at /usr/local/cpanel/Cpanel/Rlimit.pm line 108
	Cpanel::Rlimit::set_rlimit_to_infinity() called at /usr/local/cpanel/Whostmgr/Config.pm line 49
	Whostmgr::Config::apply_tweaks('newvalues', 'HASH(0x24cef90)', 'rejects', 'HASH(0x24cefa0)', 'cpconf', 'HASH(0x5220c00)', 'force', 0) called at whostmgr/bin/whostmgr2 line 4630
	main::dotweaksettings() called at whostmgr/bin/whostmgr2 line 1131

Someone can tell me why this is happening? I'd like to fix that.

Thanks guys

 

Hi guys

No help yet, my hopes are already depleted.

I really can not find an answer on google.

If someone has gone through this please share the solution.

thank you