[Michael]

Lately this particular error has been reported to me during mod installation.

Quote

Fatal error: Call to a member function startTimer() on a non-object in ips_kernel/class_db_mysqli_client.php on line 571

This is caused by the IPB 2.3.6 released that had a development part of IPB enabled. This was fixed with a re-release, but some people had already downloaded it before it was fixed. The bug report on this issue can be found here.

To fix this problem, open sources/ipsclass.php

Find:

$this->DB->obj['use_debug_log']		= 1;

Replace With:

$this->DB->obj['use_debug_log']		= 0;

Save sources/ipsclass.php and your done.