Cannot install blockmyaccount

[cstraface]

I am a newbie - been playing with prestashop now for a few days. For whatever reason, after messing around with some of the third party myaccount blocks, and now trying to switch back to the included myaccount block, I get the "The following module(s) were not installed successfully: blockmyaccount" error.

I have searched all over the forums and haven't really found any advice on fixing the issue. Any help would be appreciated.

Here is my blockmyaccount.tpl:

<!-- Block myaccount module -->

{l s='My account' mod='blockmyaccount'}


{l s='My orders' mod='blockmyaccount'}
           {if $returnAllowed}
{l s='My merchandise returns' mod='blockmyaccount'}
           {/if}
{l s='My credit slips' mod='blockmyaccount'}
{l s='My addresses' mod='blockmyaccount'}
{l s='My personal info' mod='blockmyaccount'}
           {if $voucherAllowed}
{l s='My vouchers' mod='blockmyaccount'}
           {/if}
           {$HOOK_BLOCK_MY_ACCOUNT}



{l s='Sign out' mod='blockmyaccount'}



<!-- /Block myaccount module -->

blockmyaccount php:

<?php

if (!defined('_CAN_LOAD_FILES_'))
   exit;

class BlockMyAccount extends Module
{
   public function __construct()
   {
       $this->name = 'blockmyaccount';
       $this->tab = 'Blocks';
       $this->version = '1.2';

       parent::__construct();

       $this->displayName = $this->l('My Account block');
       $this->description = $this->l('Displays a block with links relative to user account');
   }

   public function install()
   {
       if (!$this->addMyAccountBlockHook() OR !parent::install() OR !$this->registerHook('leftColumn'))
           return false;
       return true;
   }

   public function uninstall()
   {
       return (parent::uninstall() AND $this->removeMyAccountBlockHook());
   }

   public function hookLeftColumn($params)
   {
       global $smarty;

       if (!$params['cookie']->isLogged())
           return false;
       $smarty->assign(array(
           'voucherAllowed' => intval(Configuration::get('PS_VOUCHERS')),
           'returnAllowed' => intval(Configuration::get('PS_ORDER_RETURN')),
           'HOOK_BLOCK_MY_ACCOUNT' => Module::hookExec('myAccountBlock')
       ));
       return $this->display(__FILE__, $this->name.'.tpl');
   }

   public function hookRightColumn($params)
   {
       return $this->hookLeftColumn($params);
   }

   private function addMyAccountBlockHook()
   {
       return Db::getInstance()->Execute('INSERT INTO `'._DB_PREFIX_.'hook` (`name`, `title`, `description`, `position`) VALUES (\'myAccountBlock\', \'My account block\', \'Display extra informations inside the "my account" block\', 1)');
   }

   private function removeMyAccountBlockHook()
   {
       return Db::getInstance()->Execute('DELETE FROM `'._DB_PREFIX_.'hook` WHERE `name` = \'myAccountBlock\'');
   }
}

?>