Error installing IPS Community Suite v4.0.9.1

[Jeffrey McMahon]

I am trying to install IPS Community Suite v4.0.9.1, but am receiving "An error occurred (500 Error)" (more details below). The server checks (prior to installing) were all OK (I also have an older 3.x version running on a different domain on the same server), the SQL user that I created has all privileges, etc.

 

Adding an exception dump to the exceptionHandler function gives:

object(ErrorException)#5 (8) { ["message":protected]=> string(39) "Invalid argument supplied for foreach()" ["string":"Exception":private]=> string(0) "" ["code":protected]=> int(2) ["file":protected]=> string(55) "/home/analytics/public_html/forums/system/Lang/Lang.php" ["line":protected]=> int(208) ["trace":"Exception":private]=> array(5) { [0]=> array(6) { ["file"]=> string(55) "/home/analytics/public_html/forums/system/Lang/Lang.php" ["line"]=> int(208) ["function"]=> string(12) "errorHandler" ["class"]=> string(7) "IPS\IPS" ["type"]=> string(2) "::" ["args"]=> array(5) { [0]=> int(2) [1]=> string(39) "Invalid argument supplied for foreach()" [2]=> string(55) "/home/analytics/public_html/forums/system/Lang/Lang.php" [3]=> int(208) [4]=> array(2) { ["httpAcceptLanguage"]=> array(2) { [0]=> string(2) "en" [1]=> string(2) "us" } ["preferredLanguage"]=> NULL } } } [1]=> array(6) { ["file"]=> string(62) "/home/analytics/public_html/forums/system/Dispatcher/Front.php" ["line"]=> int(289) ["function"]=> string(18) "autoDetectLanguage" ["class"]=> string(9) "IPS\_Lang" ["type"]=> string(2) "::" ["args"]=> array(1) { [0]=> string(14) "en-US,en;q=0.8" } } [2]=> array(6) { ["file"]=> string(62) "/home/analytics/public_html/forums/system/Dispatcher/Front.php" ["line"]=> int(55) ["function"]=> string(11) "checkCached" ["class"]=> string(21) "IPS\Dispatcher\_Front" ["type"]=> string(2) "->" ["args"]=> array(0) { } } [3]=> array(6) { ["file"]=> string(67) "/home/analytics/public_html/forums/system/Dispatcher/Dispatcher.php" ["line"]=> int(86) ["function"]=> string(4) "init" ["class"]=> string(21) "IPS\Dispatcher\_Front" ["type"]=> string(2) "->" ["args"]=> array(0) { } } [4]=> array(6) { ["file"]=> string(44) "/home/analytics/public_html/forums/index.php" ["line"]=> int(13) ["function"]=> string(1) "i" ["class"]=> string(15) "IPS\_Dispatcher" ["type"]=> string(2) "::" ["args"]=> array(0) { } } } ["previous":"Exception":private]=> NULL ["severity":protected]=> int(0) }

 

Does anyone know what is the meaning of the above error is, and how I can fix it? I am not too familiar with PHP.