DO NOT UPDATE – IT KILLS YOUR SITE

Same happened to me. Back and fronted blank after update.

Do not overdo it! :))
Just reinstall the previous version.

I solved it by editing the file /wp-content/plugins/wp-filebase/wp-filebase.php (accessing it via FTP) and changing the original line 33:

if(func_num_args() > 1)
	return array_map(__FUNCTION__, func_get_args());

by the following:

if(func_num_args() > 1) {
	$arg_list = func_get_args();
	return array_map(__FUNCTION__, $arg_list);
	}

That worked for me.

Thanks miquelpontes,
That wordek for me.

An updated version was just posted. Installation/update works now.

Upgrade to 0.2.9.30 to fix it.

The error was occurring on PHP versions earlier than 5.3. (I had updated my test systems to latest PHP Version, that’s why I did not notice the incompatibility.)